American Chemical Suppliers

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Product
Borrelidin (Treponemycin, U 78548, C2989) Macrolide antibiotic. Bacterial and eukaryal threonyl-tRNA synthetase (THrRS) inhibitor. Antiangiogenic (IC50=0.8nM). Induces the collapse of formed capillary tubes in a dose-dependent fashion. In HUVECs, the capillary tube collapsing activity is mediated by the activation of caspases-3 and -8 and induction of apoptosis. Blocks the formation of spontaneous lung metastases of B16-BL6 melanoma cells. Cyclin-dependent kinase (CDK) inhibitor. Antiviral. Antimalarial. Group: Biochemicals. Grades: Highly Purified. CAS No. 7184-60-3. Pack Sizes: 500ug, 1mg, 5mg. US Biological Life Sciences. USBiological 4
Worldwide
Bortezomib Bortezomib (PS-341) is a reversible and selective proteasome inhibitor, and potently inhibits 20S proteasome ( K i =0.6 nM) by targeting a threonine residue. Bortezomib disrupts the cell cycle, induces apoptosis, and inhibits NF-κB. Bortezomib is the first proteasome inhibitor anticancer agent. Anti-cancer activity [1] [2]. Uses: Scientific research. Group: Signaling pathways. Alternative Names: PS-341; LDP-341; NSC 681239. CAS No. 179324-69-7. Pack Sizes: 10 mM * 1 mL; 5 mg; 10 mg; 50 mg; 100 mg; 200 mg. Product ID: HY-10227. MedChemExpress MCE
Bortezomib, deuterated (Velcade-deuterated, [ (1R) -3-Methyl-1- [ [ (2S) -1-oxo-3-phenyl-2- [ (pyrazinylcarbonyl) amino] propyl] amino] butyl] -boronic Acid-deuterated) Bortezomib is the first proteasome inhibitor to be approved b the US FDA for multiple myeloma, a blood cancer. A reversible inhibitor of the 26S proteasome-a barrel-shaped multiprotein particle found in the nucleus and cytosol of all eukaryotic cells. Group: Biochemicals. Alternative Names: Velcade-deuterated, [ (1R) -3-Methyl-1- [ [ (2S) -1-oxo-3-phenyl-2- [ (pyrazinylcarbonyl) amino] propyl] amino] butyl] -boronic Acid-deuterated. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences. USBiological 1
Worldwide
Bortezomib, Free Base (Velcade, MG-341, PS-341, [ (1S) -3-methyl-1- [ [ (2R) -3-phenyl-2- (pyrazine-2-carbonylamino) propanoyl] amino] butyl] boronic Acid) Bortezomib is the active ingredient in the drug sold under the trade name Velcade®. This drug has been approved in at least one country to treat multiple myeloma. It is a potent (Ki, 0.6nM), specific and reversible proteasome inhibitor. There is not any significant inhibitory activity against other enzymes or receptors. In a study with the National Cancer Institute's panel of 60 human cell lines, Bortezomib showed a mean IC50 of 7nM as tested by SRB analysis. Group: Biochemicals. Grades: Highly Purified. CAS No. 179324-69-7. Pack Sizes: 5mg, 10mg, 25mg, 50mg, 100mg. US Biological Life Sciences. USBiological 1
Worldwide
Bortezomib Impurity 10 Bortezomib Impurity 10 is an impurity of bortezomib, a drug used in the biomedical industry for therapy purposes. Bortezomib is a potent anticancer drug mainly used in the therapy of multiple myeloma. Synonyms: 2-PyrazinecarboxaMide, N,N',N''-[2,4,6-boroxintriyltris[[(1R)-3-Methylbutylidene]iMino[(1S)-2-oxo-1-(phenylMethyl)-2,1-ethanediyl]]]tris-. Grades: > 95%. CAS No. 390800-88-1. Molecular formula: C57H69B3N12O9. Mole weight: 1098.69. BOC Sciences 6
Bortezomib Impurity 12 Bortezomib Impurity 12 is an impurity of Bortezomib. Synonyms: (R)-Hydroperoxy Des(boric Acid) Bortezomib; N-((S)-1-(((R)-1-Hydroperoxy-3-methylbutyl)amino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide; 2-PyrazinecarboxaMide, N-[(1S)-2-[[(1R)-1-hydroperoxy-3-Methylbutyl]aMino]-2-oxo-1-(phenylMethyl)ethyl]-. Grades: > 95%. CAS No. 886979-78-8. Molecular formula: C19H24N4O4. Mole weight: 372.43. BOC Sciences 6
Bortezomib Impurity 13 Bortezomib Impurity 13 is an impurity of Bortezomib, a pharmaceutical agent primarily indicated in the therapy of multiple myeloma and mantle cell lymphoma. Synonyms: 2-PyrazinecarboxaMide, N-[(1S)-2-[[(1S)-1-hydroperoxy-3-Methylbutyl]aMino]-2-oxo-1-(phenylMethyl)ethyl]-; N-((S)-1-(((S)-1-hydroperoxy-3-Methylbutyl)aMino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxaMide. Grades: > 95%. CAS No. 886979-81-3. Molecular formula: C19H24N4O4. Mole weight: 372.43. BOC Sciences 6
Bortezomib Impurity 14 Bortezomib Impurity 14. Uses: For analytical and research use. Group: Impurity standards. CAS No. 205393-22-2. Molecular Formula: C29H39BN4O4. Mole Weight: 518.46. Catalog: APB205393222. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 16 Bortezomib Impurity 16. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: ( (S) -3-methyl-1- ( (R) -3-phenyl-2- (pyrazine-2-carboxamido) propanamido) butyl) boronic acid. CAS No. 1132709-16-0. Molecular Formula: C19H25BN4O4. Mole Weight: 384.24. Catalog: APB1132709160. Alfa Chemistry Analytical Products
Bortezomib Impurity 19 Bortezomib Impurity 19. Uses: For analytical and research use. Group: Impurity standards. CAS No. 2210228-73-0. Molecular Formula: C17H27BF3NO3. Mole Weight: 361.21. Catalog: APB2210228730. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 19 Bortezomib Impurity 19. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-3-methyl-1-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)butan-1-amine hydrochloride. Molecular Formula: C11H24BNO2·HCl. Mole Weight: 249.58. Catalog: APB03415. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 19 (Hydrochloride) Bortezomib Impurity 19 (Hydrochloride). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-3-methyl-1-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)butan-1-amine hydrochloride. CAS No. 2493017-06-2. Molecular Formula: C11H24BNO2·HCl. Mole Weight: 249.59. Catalog: APB2493017062. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 1 (R,S-Isomer) Bortezomib Impurity 1 (R,S-Isomer). Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C57H69B3N12O9. Mole Weight: 1098.68. Catalog: APB06367. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 20 Bortezomib Impurity 20. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: ( (R) -3-methyl-1- ( (R) -3-phenyl-2- (pyrazine-2-carboxamido) propanamido) butyl) boronic acid compound with ( (S) -3-methyl-1- ( (S) -3-phenyl-2- (pyrazine-2-carboxamido) propanamido) butyl) boronic acid (1:1). Molecular Formula: C19H25BN4O4. Mole Weight: 384.24. Catalog: APB03413. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 21 Bortezomib Impurity 21. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1104011-35-9. Molecular Formula: C19H25BN4O4. Mole Weight: 384.24. Catalog: APB1104011359. Alfa Chemistry Analytical Products
Bortezomib Impurity 21 Bortezomib Impurity 21. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-N-(1-(isopentylamino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide. CAS No. 1446194-56-4. Molecular Formula: C19H24N4O2. Mole Weight: 340.42. Catalog: APB1446194564. Alfa Chemistry Analytical Products
Bortezomib Impurity 22 Bortezomib Impurity 22. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-methyl 3-phenyl-2-(pyrazine-2-carboxamido)propanoate. CAS No. 73058-37-4. Molecular Formula: C15H15N3O3. Mole Weight: 285.3. Catalog: APB73058374. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 22 Bortezomib Impurity 22. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1608986-16-8. Molecular Formula: C14H13N3O3. Mole Weight: 271.28. Catalog: APB1608986168. Alfa Chemistry Analytical Products
Bortezomib Impurity 23 Bortezomib Impurity 23. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-N-(1-(3-methylbutanamido)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide. CAS No. 862894-96-0. Molecular Formula: C19H22N4O3. Mole Weight: 354.4. Catalog: APB862894960. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 23 Bortezomib Impurity 23. Uses: For analytical and research use. Group: Impurity standards. CAS No. 2308-61-4. Molecular Formula: C18H18N2O2. Mole Weight: 294.35. Catalog: APB2308614. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 24 Bortezomib Impurity 24. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1255646-95-7. Molecular Formula: C17H18N2O3. Mole Weight: 298.34. Catalog: APB1255646957. Alfa Chemistry Analytical Products
Bortezomib Impurity 24 Bortezomib Impurity 24. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: N/A. Molecular Formula: C84H96B3N15O12. Mole Weight: 1540.19. Catalog: APB03412. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 25 Bortezomib Impurity 25. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: N-((S)-1-(((R)-1-methoxy-3-methylbutyl)amino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide. Molecular Formula: C20H26N4O3. Mole Weight: 370.45. Catalog: APB03409. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 26 Bortezomib Impurity 26. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: N,N',N''-((2R,2'R,2''R)-(((1S,1'S,1''S)-(1,3,5,2,4,6-trioxatriborinane-2,4,6-triyl)tris(3-methylbutane-1,1-diyl))tris(azanediyl))tris(1-oxo-3-phenylpropane-2,1-diyl))tris(pyrazine-2-carboxamide). Molecular Formula: C57H69B3N12O9. Mole Weight: 1098.67. Catalog: APB03410. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 27 Bortezomib Impurity 27. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: N-((S)-1-(((S)-1-methoxy-3-methylbutyl)amino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide. Molecular Formula: C20H26N4O3. Mole Weight: 370.45. Catalog: APB03411. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 27 Bortezomib Impurity 27. Uses: For analytical and research use. Group: Impurity standards. CAS No. 84110-39-4. Molecular Formula: C15H27BO2. Mole Weight: 250.19. Catalog: APB84110394. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 28 Bortezomib Impurity 28. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: N,N',N''-((1R,1'R,1''R)-(1,3,5,2,4,6-trioxatriborinane-2,4,6-triyl)tris(3-methylbutane-1,1-diyl))tris(pyrazine-2-carboxamide). Molecular Formula: C30H42B3N9O6. Mole Weight: 657.14. Catalog: APB03406. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 29 Bortezomib Impurity 29. Uses: For analytical and research use. Group: Impurity standards. CAS No. 847644-46-6. Molecular Formula: C17H31BN2O3. Mole Weight: 322.25. Catalog: APB847644466. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 29 Bortezomib Impurity 29. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C84H96B3N15O12. Mole Weight: 1540.19. Catalog: APB03407. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 2 (SR-Isomer, Bortezomib Impurity E) Bortezomib Impurity 2 (SR-Isomer, Bortezomib Impurity E) is an impurity in the synthesis of Bortezomib. Grades: 98% by HPLC. CAS No. 289472-78-2. Molecular formula: C19H24N4O3. Mole weight: 356.43. BOC Sciences 6
Bortezomib Impurity 30 Bortezomib Impurity 30. Uses: For analytical and research use. Group: Impurity standards. CAS No. 179324-86-8. Molecular Formula: C15H28BNO2. Mole Weight: 265.2. Catalog: APB179324868. Alfa Chemistry Analytical Products
Bortezomib Impurity 30 Bortezomib Impurity 30. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-3-phenyl-2-(pyrazine-2-carboxamido)propanoic acid. Molecular Formula: C14H13N3O3. Mole Weight: 271.27. Catalog: APB03408. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 31 Bortezomib Impurity 31. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S,E)-N-(1-((3-methylbut-1-en-1-yl)amino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide. CAS No. 862895-00-9. Molecular Formula: C19H22N4O2. Mole Weight: 338.4. Catalog: APB862895009. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 31 Bortezomib Impurity 31. Uses: For analytical and research use. Group: Impurity standards. CAS No. 7364-51-4. Molecular Formula: C15H27NO2Si2. Mole Weight: 309.56. Catalog: APB7364514. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 32 Bortezomib Impurity 32. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C15H14N4O3. Mole Weight: 298.3. Catalog: APB06369. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 32 Bortezomib Impurity 32. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-3-methyl-1-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)butan-1-amine hydrochloride. CAS No. 945606-99-5. Molecular Formula: C15H28BNO2·HCl. Mole Weight: 301.66. Catalog: APB945606995. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 33 Bortezomib Impurity 33. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 948294-96-0(free base); ((R)-1-((S)-2-amino-3-phenylpropanamido)-3-methylbutyl)boronic acid hydrochloride. Molecular Formula: C14H24BClN2O3. Mole Weight: 314.62. Catalog: APB03405. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 34 Bortezomib Impurity 34. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (3aS,4S,6S,7aR)-2-isobutyl-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborole. CAS No. 84110-34-9. Molecular Formula: C14H25BO2. Mole Weight: 236.16. Catalog: APB84110349. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 34 Bortezomib Impurity 34. Uses: For analytical and research use. Group: Impurity standards. CAS No. 477254-69-6. Molecular Formula: C17H29BF3NO4. Mole Weight: 379.23. Catalog: APB477254696. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 35 Bortezomib Impurity 35. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (3aS,4S,6S,7aR)-2-((R)-1-chloro-3-methylbutyl)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborole. CAS No. 87304-47-0. Molecular Formula: C15H26BClO2. Mole Weight: 284.63. Catalog: APB87304470. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 37 Bortezomib Impurity 37. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-(1S,2S,3R,5S)-2-hydroxy-2,6,6-trimethylbicyclo[3.1.1]heptan-3-yl 2-((tert-butoxycarbonyl)amino)-3-phenylpropanoate. Molecular Formula: C24H35NO5. Mole Weight: 417.54. Catalog: APB03404. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 38 Bortezomib Impurity 38. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-tert-butyl (1-(isopentylamino)-1-oxo-3-phenylpropan-2-yl)carbamate. Molecular Formula: C19H30N2O3. Mole Weight: 334.45. Catalog: APB03402. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 39 Bortezomib Impurity 39. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-2-amino-N-isopentyl-3-phenylpropanamide. Molecular Formula: C14H22N2O. Mole Weight: 234.34. Catalog: APB03403. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 4 Bortezomib Impurity 4 is an impurity of Bortezomib. Synonyms: N(1-(3-Methylbutanamido) N(1-Des(boric Acid)) Bortezomib; (S)-N-(1-(3-Methylbutanamido)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide. Grades: > 95%. CAS No. 862894-96-0. Molecular formula: C19H22N4O3. Mole weight: 354.41. BOC Sciences 6
Bortezomib Impurity 40 Bortezomib Impurity 40. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-3-methyl-1-((3aR,4R,6R,7aS)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)butan-1-amine. Molecular Formula: C15H28BNO2. Mole Weight: 265.20. Catalog: APB03317. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 41 Bortezomib Impurity 41. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: tert-butyl ((S)-1-(((R)-3-methyl-1-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)butyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate. Molecular Formula: C29H45BN2O5. Mole Weight: 512.49. Catalog: APB03513. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 42 Bortezomib Impurity 42. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S,Z)-N-(1-((3-methylbut-1-en-1-yl)amino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide. CAS No. 2276538-67-9. Molecular Formula: C19H22N4O2. Mole Weight: 338.40. Catalog: APB2276538679. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 43 Bortezomib Impurity 43. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: ( (R) -3-methyl-1- ( (R) -3-phenyl-2- ( (R) -3-phenyl-2- (pyrazine-2-carboxamido) propanamido) propanamido) butyl) boronic acid. Molecular Formula: C28H34BN5O5. Mole Weight: 531.41. Catalog: APB03512. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 43 Bortezomib Impurity 43. Uses: For analytical and research use. Group: Impurity standards. CAS No. 205393-21-1. Molecular Formula: C24H38BClN2O3. Mole Weight: 448.84. Catalog: APB205393211. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 44 Bortezomib Impurity 44. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (3aS,4S,6S,7aR)-2-((S)-1-chloro-3-methylbutyl)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborole. CAS No. 85167-14-2. Molecular Formula: C15H26BClO2. Mole Weight: 284.17. Catalog: APB85167142. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 45 Bortezomib Impurity 45. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 1,1,1-trimethyl-N-((R)-3-methyl-1-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)butyl)-N-(trimethylsilyl)silanamine. CAS No. 514820-48-5. Molecular Formula: C21H44BNO2Si2. Mole Weight: 409.30. Catalog: APB514820485. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 45 Bortezomib Impurity 45. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C40H50N6O7. Mole Weight: 726.88. Catalog: APB06370. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 46 Bortezomib Impurity 46. Uses: For analytical and research use. Group: Impurity standards. CAS No. 948294-96-0. Molecular Formula: C14H23BN2O3. Mole Weight: 278.16. Catalog: APB948294960. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 46 Bortezomib Impurity 46. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: N-((R)-1-(((S)-3-methyl-1-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)butyl)amino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide. Molecular Formula: C29H39BN4O4. Mole Weight: 518.31. Catalog: APB03511. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 47 Bortezomib Impurity 47. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: N-((S)-1-(((S)-3-methyl-1-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)butyl)amino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide. Molecular Formula: C29H39BN4O4. Mole Weight: 518.31. Catalog: APB03510. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 48 Bortezomib Impurity 48. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-3-phenyl-2-((S)-3-phenyl-2-(pyrazine-2-carboxamido)propanamido)propanoic acid. Molecular Formula: C23H22N4O4. Mole Weight: 418.16. Catalog: APB03509. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 49 Bortezomib Impurity 49. Uses: For analytical and research use. Group: Impurity standards. CAS No. 4664-57-7. Molecular Formula: C11H16O3S. Mole Weight: 228.31. Catalog: APB4664577. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 50 Bortezomib Impurity 50. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-3-phenyl-2-((R)-3-phenyl-2-(pyrazine-2-carboxamido)propanamido)propanoic acid. Molecular Formula: C23H22N4O4. Mole Weight: 418.16. Catalog: APB03508. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 51 Bortezomib Impurity 51. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-3-phenyl-2-((R)-3-phenyl-2-(pyrazine-2-carboxamido)propanamido)propanoic acid. Molecular Formula: C23H22N4O4. Mole Weight: 418.16. Catalog: APB03507. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 51 Bortezomib Impurity 51. Uses: For analytical and research use. Group: Impurity standards. CAS No. 2415205-36-4. Molecular Formula: C17H29BF3NO4. Mole Weight: 379.23. Catalog: APB2415205364. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 52 Bortezomib Impurity 52. Uses: For analytical and research use. Group: Impurity standards. CAS No. 94242-85-0. Molecular Formula: C7H15BO2. Mole Weight: 142.01. Catalog: APB94242850. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 52 Bortezomib Impurity 52. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-2-((S)-2-amino-3-phenylpropanamido)-3-phenylpropanoic acid. CAS No. 2577-40-4. Molecular Formula: C18H20N2O3. Mole Weight: 312.15. Catalog: APB2577404. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 53 Bortezomib Impurity 53. Uses: For analytical and research use. Group: Impurity standards. CAS No. 389799-97-7. Molecular Formula: C5H14BNO2. Mole Weight: 130.98. Catalog: APB389799977. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 53 Bortezomib Impurity 53. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-2-((S)-2-amino-3-phenylpropanamido)-3-phenylpropanoic acid. CAS No. 2577-12-0. Molecular Formula: C18H20N2O3. Mole Weight: 312.15. Catalog: APB2577120. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 54 Bortezomib Impurity 54. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-2-((R)-2-amino-3-phenylpropanamido)-3-phenylpropanoic acid. CAS No. 58607-69-5. Molecular Formula: C18H20N2O3. Mole Weight: 312.15. Catalog: APB58607695. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 54 (Trifluoroacetate) Bortezomib Impurity 54 (Trifluoroacetate). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 58607-69-5(free base); (R)-2-((R)-2-amino-3-phenylpropanamido)-3-phenylpropanoic acid compound with 2,2,2-trifluoroacetic acid. Molecular Formula: C18H20N2O3·CF3COOH. Mole Weight: 426.14. Catalog: APB03506. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 55 Bortezomib Impurity 55. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-2-((R)-2-amino-3-phenylpropanamido)-3-phenylpropanoic acid. CAS No. 2577-22-2. Molecular Formula: C18H20N2O3. Mole Weight: 312.15. Catalog: APB2577222. Alfa Chemistry Analytical Products 2
Bortezomib Impurity 7 Bortezomib Impurity 7. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C19H25BN4O5. Mole Weight: 400.24. Catalog: APB06402. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 8 Bortezomib Impurity 8. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C24H27BN6O5. Mole Weight: 490.33. Catalog: APB06368. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 9 Bortezomib Impurity 9 is an impurity of Bortezomib and a tripeptide boronic acid proteasome inhibitor used as an antitumor agent. Synonyms: N-(2-Pyrazinylcarbonyl)-L-phenylalanyl-N-[(1R)-1-borono-3-methylbutyl]-L-phenylalaninamide ; ( (R) -3-Methyl-1- ( (S) -3-phenyl-2- ( (S) -3-phenyl-2- (pyrazine-2-carboxamido) propanamido) propanamido) butyl) boronic Acid. Grades: > 95%. CAS No. 1194235-41-0. Molecular formula: C28H34BN5O5. Mole weight: 531.42. BOC Sciences 6

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