American Chemical Suppliers
A directory of where to buy chemicals in the USA, including: distributors, industrial manufacturers, bulk supplies and wholesalers of raw ingredients & finished goods.
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Product | Description |
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abieta-7, 13-dien-18-ol hydroxylase Quick inquiry Where to buy Suppliers range |
A heme-thiolate protein (P-450). This enzyme catalyses a step in the pathway of abietic acid biosynthesis. The activity has been demonstrated in cell-free stem extracts of Abies grandis (grand fir) and Pinus contorta (lodgepole pine), and the gene encoding the enzyme has been identified in Pinus taeda (loblolly pine). The recombinant enzyme catalyses the oxidation of multiple diterpene alcohol and aldehydes, including levopimaradienol, isopimara-7, 15-dienol, isopimara-7, 15-dienal, dehydroabietadienol and dehydroabietadienal. It is not able to oxidize abietadiene. abieta-7, 13-dien-18-ol hydroxylase Group: Enzymes. Alternative Name: CYP720B1; PtAO; abietadienol hydroxylase (ambiguous). Enzyme manufacturers USA. |
abieta-7, 13-diene hydroxylase Quick inquiry Where to buy Suppliers range |
A heme-thiolate protein (P-450). This enzyme catalyses a step in the pathway of abietic acid biosynthesis. The activity has been demonstrated in cell-free stem extracts of Abies grandis (grand fir) and Pinus contorta (lodgepole pine). The enzyme is localized in the microsomal fraction and requires both oxygen and NADPH. Inhibition by carbon monoxide and several substituted N-heterocyclic inhibitors suggests that the enzyme is a cytochrome P-450-dependent monooxygenase. Activity is induced by wounding of the plant tissue. abieta-7, 13-diene hydroxylase Group: Enzymes. Alternative Name: abietadiene hydroxylase (ambiguous). Global specialty enzymes. |
abieta-7, 13-diene synthase Quick inquiry Where to buy Suppliers range |
Part of a bifunctional enzyme involved in the biosynthesis of abietadiene. See also EC 5. 5. 1. 12, copalyl diphosphate synthase. Requires Mg2+. abieta-7, 13-diene synthase Group: Enzymes. Alternative Name: copalyl-diphosphate diphosphate-lyase (cyclizing) (ambiguous); abietadiene synthase (ambiguous). CAS Number: 157972-08-2. Industrial enzyme suppliers. |
Abieta-8,11,13-triene-7,15,18-triol Quick inquiry Where to buy Suppliers range |
Abieta-8,11,13-triene-7,15,18-triol Molecular Formula: C20H30O3. CAS Number: 337527-10-3. Categories: Reagent Grade Chemicals. |
Abietic acid Quick inquiry Where to buy Suppliers range |
Abietic acid Group: Heterocyclic Organic Compound. Alternative Name: ABIETIC acid; (1R,4AR,4BR,10AR)-7-ISOPROPYL-1,4A-DIMETHYL-1,2,3,4,4A,4B,5,6,10,10A-DECAHYDRO-PHENANTHRENE-1-CARBOXYLIC acid; SYLVIC acid; ROSIN CAS Number: 514-10-3. Molecular Formula C20H30O2. Weight 302.45. Symbol GHS07,GHS09. Boiling Point 440?. Melting Point 139-142°C(lit.). Flash Point 208?. Density 1.06. Safety Description 26-36. Hazard statements Xi,N. Supplemental Hazard Statements H410-H315-H319-H335-H400. |
Abietic acid Quick inquiry Where to buy Suppliers range |
Abietic acid isolated from the herbs of Pinus massoniana. Also known as: (1R, 4AR, 4BR, 10AR) -7-ISOPROPYL-1, 4A-DIMETHYL-1, 2, 3, 4, 4A, 4B, 5, 6, 10, 10A- DECAHYDRO- PHENANTHRENE- 1- CARBOXYLIC ACID;. Cas No. 514-10-3. Formula C20H30O2. Weight 302.45. Lab Grade Chemical Suppliers |
Abietic Acid Where to buy Suppliers range |
CAS No: 514-10-3 |
ABIETIC ACID Where to buy Suppliers range |
CAS No. 514-10-3. Food Grade Kosher Halal |
Abiraterone Quick inquiry Where to buy Suppliers range |
Abiraterone blocks the synthesis of androgens by inhibiting CYP17A1. It is used to treat metastatic, castration-resistant prostate cancer. Also Known As: (3beta) - 17- (3-pyridinyl) -androsta-5, 16-dien-3-ol; 17 - (3-Pyridyl) androsta-5, 16 -dien-3beta-ol; CB 7598; CB-7598. Cas No. 154229-19-3. Formula C24H31NO. Weight 349.51. Reagent Grades sold to U.S. Companies and Businesses. |
Abiraterone Where to buy Suppliers range |
Abiraterone. CAS No: 154229-19-3 |
Abiraterone Quick inquiry Where to buy Suppliers range |
white solid. Abiraterone Group: Steroidal Compounds. Alternative Name: Abiraterone; (3beta)-17-(3-pyridinyl)-androsta-5,16-dien-3-ol;. IUPAC Name: (3S,8R,9S,10R,13S,14S)-10,13-dimethyl-17-pyridin-3-yl-2,3,4,7,8,9,11,12,14,15-decahydro-1H-cyclopenta[a]phenanthren-3-ol. CAS Number: 154229-19-3. Molecular Formula C24H31NO. Weight 349.51. Exact Mass 349.24100. Boiling Point 500.2ºC at 760mmHg. Flash Point 256.3ºC. Density 1.14g/cm3. Purity 98%. SMILES: CC12CCC(CC1=CCC3C2CCC4(C3CC=C4C5=CN=CC=C5)C)O. InChIKey GZOSMCIZMLWJML-VJLLXTKPSA-N. |
Abiraterone Quick inquiry Where to buy Suppliers range |
Abiraterone is a potent inhibitor of CYP17 with IC50 of 2 nM. Molecular Weight: 349.52. Purity: 0.9819. Storage Store at -20°C. Group: Inhibitors. Other Names: CB 7598,16-dien-3-ol,CB7598. CAS Number: 154229-19-3. CEI-1197. Abiraterone; 154229-19-3; CB 7598,16-dien-3-ol,CB7598; CYP17; C24H31NO. |
Abiraterone Acetate (CB7630) Quick inquiry Where to buy Suppliers range |
Abiraterone Acetate (CB7630). Molecular Weight: 391.55. Purity: >99%. Storage 2 years at -20 centigrade. Group: Inhibitors. Other Names: CB 7630, CB-7630. CAS Number: 154229-18-2. CEI-0228. Abiraterone Acetate (CB7630), CB 7630, CB-7630, 154229-18-2, cytochrome P45017alpha, C26H33NO2, Cyp17a1. |
Abiraterone Related Compound 1 (Pregnenolone-16-ene Acetate) Quick inquiry Where to buy Suppliers range |
16-Dehydropregnenolone Acetate is the dehydration product of Pregnenolone Acetate Also Known As: Pregnenolone-16-ene Acetate; Abiraterone Impurity 1. Cas No. 979-02-2. Formula C23H32O3, Wt 356.51. Research Chemical Suppliers. |
Abiraterone Related Compound 4 (Prasterone Acetate Triflate) Quick inquiry Where to buy Suppliers range |
An impurity of Abiraterone, a steroid hormone involved in the steroidogenesis of progesterone, mineralocorticoids, glucocorticoids, androgens, and estrogens. Synonyms: Abiraterone Impurity 4, Prasterone Acetate Triflate. Cas No. 115375-60-5. Molecular formula C22H29F3O5S. Molecular weight 462.53. Laboratory ACS Grades Available. |
Abitol Acrylate mixed isomers Where to buy Suppliers range |
Abitol Acrylate mixed isomers. Monomer-Polymer and Dajac Labs manufacturer of specialty monomers, polymers or copolymers. |
Abitol E Hydroabietyl Alcohol Where to buy Suppliers range |
Chemicals |
Abitol Methacrylate mixed isomers Where to buy Suppliers range |
Abitol Methacrylate mixed isomers. Monomer-Polymer and Dajac Labs manufacturer of specialty monomers, polymers or copolymers. |
Abitrexate(Methotrexate) Quick inquiry Where to buy Suppliers range |
Abitrexate (Methotrexate) is an antimetabolite and antifolate agent. Molecular Weight: 454.44. Purity: >99%. Storage 2 years at -20 centigrade. Group: Inhibitors. Other Names: Methotrexate, Rheumatrex, Trexall. CEI-0325. Abitrexate(Methotrexate), Methotrexate, Rheumatrex, Trexall, 21672, C20H22N8O5. |
AbK Quick inquiry Where to buy Suppliers range |
AbK is an unnatural amino acid and is genetically encoded for site-selective incorporation into proteins in mammalian cells and bacteria. It has efficient photocrosslinking in vitro and in vivo. It is used as a UV light-activated photo-crosslinking probe Synonyms: N6-[[2- (3-Methyl-3H-diazirin-3-yl) ethoxy]carbonyl]-L-lysine. Cas No. 1253643-88-7. Molecular formula C13H21N4O6F3. Molecular weight 272.30. Fine Chemicals. |
ABL 127 Quick inquiry Where to buy Suppliers range |
ABL 127 is a covalent aza- β -lactam inhibitor of protein phosphatase methylesterase-1 (PME-1; IC50 = 4.2 nM). ABL 127 Molecular Formula: C17H20N2O5. CAS Number: 1073529-41-5. Molecular weight 332.4. Categories: Reagent Grade Laboratory Chemicals. |
A blend of enzymes for coffee Quick inquiry Where to buy Suppliers range |
A unique blend of food grade enzymes, bio-enhancers and naturally available microbes that is used as an effluent treatment in Arabica and Robusta coffee berry processing to depolymerize esterified pectins, fibers, and plant polymers ultimately producing lower concentrations of BOD, COD, TSS and TDS as well as improved clarity and elimination of offensive odor in coffee water. Uses: Coffee berry processing. Group: Enzymes. Pack Sizes: 25kg/paper barrel (powder form), 30kg/polyster barrel (liquid form). Food enzyme manufacturing. |
Abl Kinase Mutant active human, Recombinant Quick inquiry Where to buy Suppliers range |
Abelson murine leukemia viral oncogene homolog 1 also known as ABL1 is a protein that, in humans, is encoded by the ABL1 gene (previous symbol ABL) located on chromosome 9. c-Abl is sometimes used to refer to the version of the gene found within the mammalian genome, while v-Abl refers to the viral gene. Abl Kinase Mutant active human, Recombinant Group: Enzymes. Alternative Name: ABL1; JTK7; c-ABL; p150; Abl Kinase; ABL; bcr/abl; c-ABL1; v-abl. Global enzyme suppliers, distributors and manufacturers. |
AB-MECA Quick inquiry Where to buy Suppliers range |
AB-MECA, a adenosine derivative, is a high affinity human A3 receptor in HEK 293 cells agonist. Synonyms: (2S, 3S, 4R, 5R) - 5- [6- [ (4- aminophenyl) methylamino] purin- 9- yl] - 3, 4- dihydroxy- N- methyloxolane- 2- carboxamide AB- MECA 152918- 26- 8 N6- (4- Aminobenzyl) - N- methyl carboxamido adenosine (2S, 3S, 4R, 5R) - 5- [6- [ (4- aminophenyl) methylamino] purin- 9- yl] - 3, 4- dihydroxy- N- methy. Cas No. 152918-26-8. Molecular formula C18H21N7O4. Molecular weight 399.40. Laboratory Analytical Grades Available. |
Abn-CBD Quick inquiry Where to buy Suppliers range |
Abn-CBD is a neurobehaviorally inactive cannabinoid and acts as a selective and potent agonist for GPR55 with EC50 value of 2. 5 M. It increases migration and phosphorylation of protein kinases in human umbilical vein endothelial cells. Synonyms: 4- [ (1R, 6R) - 3- methyl- 6- (1- methylethenyl) - 2- cyclohexen- 1- yl] - 5- pentyl- 1, 3- benzenediol; Abnormal- cannabidiol; CAY10429; trans- (- ) - 4- p- Mentha- 1, 8- dien- 3- yl- 5- pentylresorcinol; trans- (- ) - 4- [3- Methyl- 6- (1- methylethenyl) - 2- cyclohexen- 1- yl] - 5- pentyl- 1, 3- benzenedi. Cas No. 22972-55-0. Molecular formula C21H30O2. Molecular weight 314.47. Laboratory AR Grades Available. |
ABO blood type Where to buy Suppliers range |
Immuno-serological testing |
ABP 688 Quick inquiry Where to buy Suppliers range |
ABP 688 is a high affinity human mGlu5 receptor antagonist (Ki = 1. 7 nM) that inhibits the release of glutamate-induced calcium from L(tk-) cells expressing human mGlu5 receptors (IC50 = 2. 3 nM). Synonyms: 3-[2- (6-Methyl-2-pyridinyl) ethynyl]-2-cyclohexene-1-one O-methyloxime; N-methoxy-3-[2- (6-methylpyridin-2-yl) ethynyl]cyclohex-2-en-1-imine. Cas No. 924298-51-1. Molecular formula C15H16N2O. Molecular weight 240.3. Reagent Grade Laboratory Chemicals. |
Abrasives Where to buy Suppliers range |
Abrasives. Chemicals & Ingredients Division |
Abrocitinib Quick inquiry Where to buy Suppliers range |
Abrocitinib is a seletive JAK1 inhibitor with IC50 value of 29 nM. Abrocitinib has been investigated for the treatment of plaque psoriasis. Abrocitinib Other Name: PF-04965842; N-[3-[methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]cyclobutyl]propane-1-sulfonamide. Molecular Formula: C14H21N5O2S. CAS Number: 1622902-68-4. Molecular weight 323.415. Categories: Laboratory ACS Grades Available. |
a-Bromo-2',5'-dihydroxy acetophenone Where to buy Suppliers range |
a-Bromo-2',5'-dihydroxy acetophenone. Formula C10H11BrO3. CAS No. 001204-21-3 |
a-Bromo-2,6-dichlorotoluene Where to buy Suppliers range |
a-Bromo-2,6-dichlorotoluene. Formula C7H5BrCl2. CAS No. 020443-98-5 |
a-Bromo-2-methylphenylacetic acid Quick inquiry Where to buy Suppliers range |
Synonyms: 2-bromo-2- (2-methylphenyl) aceticacid; 29302-73-6; SCHEMBL76634; CTK4G3087; a-Bromo-2-methylphenylaceticacid; Benzeneaceticacid, a-bromo-2-methyl-. Molecular formula C9H9BrO2. Molecular weight 229.07056;g/mol. Laboratory AR Grades Available. |
a-Bromo-2-nitrotoluene Where to buy Suppliers range |
a-Bromo-2-nitrotoluene. Formula C7H6BrNO2. CAS No. 003958-60-9 |
a-Bromo-3-nitrotoluene Where to buy Suppliers range |
a-Bromo-3-nitrotoluene. Formula C7H6BrNO2. CAS No. 003958-57-4 |
a-Bromo-4-nitrotoluene Where to buy Suppliers range |
a-Bromo-4-nitrotoluene. Formula C7H6BrNO2. CAS No. 007745-93-9 |
a'-Bromo-a,a,a-trifluoro-m-xylene Where to buy Suppliers range |
a'-Bromo-a,a,a-trifluoro-m-xylene. Formula C8H6BrF3. CAS No. 000402-23-3 |
a-Bromoacetophenone Where to buy Suppliers range |
a-Bromoacetophenone. Formula C8H7BrO. CAS No. 000070-11-1 |
a-Bromocaproic acid Where to buy Suppliers range |
a-Bromocaproic acid. Formula C6H11BrO2. CAS No. 000616-05-7 |
a-Bromo-g-butyrolactone Where to buy Suppliers range |
a-Bromo-g-butyrolactone. Formula C4H5BrO2. CAS No. 005061-21-2 |
a-Bromoisocaproic acid Where to buy Suppliers range |
a-Bromoisocaproic acid. CAS No. 042880-22-8 |
a-Bromo-m-toluonitrile Where to buy Suppliers range |
a-Bromo-m-toluonitrile. Formula C7H4BrN. CAS No. 028188-41-2 |
a-Bromo-m-xylene Where to buy Suppliers range |
a-Bromo-m-xylene. Formula C8H9Br. CAS No. 000620-13-3 |
a-Bromo-n-caproic acid Where to buy Suppliers range |
a-Bromo-n-caproic acid. Formula C6H11BrO2. CAS No. 000616-05-7 |
a-Bromopentanoic acid Where to buy Suppliers range |
a-Bromopentanoic acid. Formula C5H9Br. CAS No. 000584-93-0 |
a-Bromophenylacetic acid Where to buy Suppliers range |
a-Bromophenylacetic acid. Formula C8H7BrO2. CAS No. 004870-65-9 |
a-Bromophenylacetic acid methyl ester Where to buy Suppliers range |
a-Bromophenylacetic acid methyl ester. CAS No. 003042-81-7 |
a-Bromo-p-nitrotoluene Where to buy Suppliers range |
a-Bromo-p-nitrotoluene. Formula C7H6BrNO2. CAS No. 007745-93-9 |
a-Bromopropionic acid Where to buy Suppliers range |
a-Bromopropionic acid. Formula C3H5BrO2. CAS No. 000598-72-1 |
a-Bromopropiophenone Where to buy Suppliers range |
a-Bromopropiophenone. Formula C9H10BrO. CAS No. 002114-00-3 |
a-Bromo-p-toluic acid Where to buy Suppliers range |
a-Bromo-p-toluic acid. Formula C8H7BrO2. CAS No. 006232-88-8 |
a-Bromo-p-xylene Where to buy Suppliers range |
a-Bromo-p-xylene. Formula C8H9Br. CAS No. 000104-81-4 |
a-Bromostyrene Where to buy Suppliers range |
a-Bromostyrene. Formula C8H7Br. CAS No. 000098-81-7 |
a-Bromotolunitrile Where to buy Suppliers range |
a-Bromotolunitrile. Formula C7H4BrN |
a-Bromovaleric acid Where to buy Suppliers range |
a-Bromovaleric acid. Formula C5H9Br. CAS No. 000584-93-0 |
ABS Quick inquiry Where to buy Suppliers range |
ABS Group: Polymer Science. Cas No. 9003-56-9. |
ABS 3D printing filament Quick inquiry Where to buy Suppliers range |
ABS 3D printing filament Group: 3D Printing Materials. Cas No. 9003-56-9. |
abscisate β -glucosyltransferase Quick inquiry Where to buy Suppliers range |
The enzyme acts better on (S)-2-trans-abscisate than the natural (S)-2-cis isomer, abscisate, or its enantiomer, the (R)-2-cis isomer. abscisate β -glucosyltransferase Group: Enzymes. Alternative Name: ABA-glucosyltransferase; ABA-GTase; AOG; UDP-D-glucose: abscisate β -D-glucosyltransferase. Enzyme manufacturers USA. |
Abscisic acid, mixed isomers Quick inquiry Where to buy Suppliers range |
Abscisic acid, mixed isomers Other Name: Abscisic acid, mixed isomers; 5-(1-Hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-enyl)-3-methylpenta-2,4-dienoic acid. Molecular Formula: C15H20O4. CAS Number: 7773-56-0. Molecular weight 264.32. Categories: Laboratory ACS Grades Available. |
abscisic-aldehyde oxidase Quick inquiry Where to buy Suppliers range |
Acts on both (+)- and (-)-abscisic aldehyde. Involved in the abscisic-acid biosynthesis pathway in plants, along with EC 1. 1. 1. 288, (xanthoxin dehydrogenase), EC 1. 13. 11. 51 (9-cis-epoxycarotenoid dioxygenase) and EC 1. 14. 13. 93 [(+)-abscisic acid 8'-hydroxylase]. While abscisic aldehyde is the best substrate, the enzyme also acts with indole-3-aldehyde, 1-naphthaldehyde and benzaldehyde as substrates, but more slowly. abscisic-aldehyde oxidase Group: Enzymes. Alternative Name: abscisic aldehyde oxidase; AAO3; AOd; AO?. CAS Number: 129204-36-0. Global enzyme suppliers, distributors and manufacturers. |
Absinthiin Quick inquiry Where to buy Suppliers range |
Absinthiin usually comes from the herbs of Artemisia absinthium. Absinthiin Other Name: ABSINTHIN; ABSYNTHIN; ABSINTHII TINCTURA; Absynthine; Sbsinthin; 2H-7,13b-Ethenopentaleno[1'',2'':6,7; 5'',4'':6',7']dicyclohepta[1,2-b:1',2'-b']difuran-2,12(11H)-dione,3,3a,4,5,6,6a,6b,7,7a,8,9,10,10a,13a,13c,14b-hexadecahydro-6,8-dihydroxy-3,6,8,11,14,1. Molecular Formula: C30H40O6. CAS Number: 1362-42-1. Molecular weight 496.62. Categories: Laboratory Reagents Grade. |
Absorbents Where to buy Suppliers range |
Absorbents. Chemicals & Ingredients Division |
ABS Resin Quick inquiry Where to buy Suppliers range |
ABS Resin Group: Polymer Science. Cas No. 9003-56-9. |
Abs resins Quick inquiry Where to buy Suppliers range |
white. Abs resins Group: Polymer Science. Alternative Names: 2-Propenenitrile ,Polymerwith1 ,3-butadieneandethenylbenzene; abs; abscopolymer; absresin; absresins; acrylonitrile,polymerwith1,3-butadieneandstyrene; acrylonitrile-butadiene-styrenecopolymers; Acrylonitrile-butadiene-styreneterpolymer. Cas No. 9003-56-9. IUPAC Name: ABS Resins. Molecular Formula: C45H51N3X2. Weight: 633.91. Exact Mass: 211.136. Boiling Point: 145.2ºC at 760 mmHg. Melting Point: 58.54(±0.5)ºC. Density: 1.05 g/mL at 25 °C. Purity: 0.96. Safty Description: S36-S26. Hazard statements: Xn. |
ABT-046 Quick inquiry Where to buy Suppliers range |
ABT-046 is a potent, selective, and orally bioavailable Diacylglycerol acyltransferase 1 (DGAT-1 ) inhibitor (IC50=8 nM). Cas No. 1031336-60-3. Molecular formula C20H22N4O2. Molecular weight 350.41. Laboratory AR Grades Available. |
ABT-046 Quick inquiry Where to buy Suppliers range |
Molecular Weight: 350.41. Storage Store at -20°C. Group: Inhibitors. Other Names: DGAT-1 inhibitor; ABT 046; ABT046. CAS Number: 1031336-60-3. CEI-1198. ABT-046; 1031336-60-3; DGAT-1 inhibitor; ABT 046; ABT046; DGAT-1; C20H22N4O2. |
ABT 089 dihydrochloride Quick inquiry Where to buy Suppliers range |
ABT 089 dihydrochloride is a selective 4 2 nicotinic acetylcholine receptor partial agonist (Ki = 16 nM) with >1000-fold and >10,000-fold selectivity for 4 2 over 1 1 1 and 7 receptors, respectively. ABT 089 dihydrochloride is used as a nootropic and Synonyms: 2-Methyl-3-[ (2S) -pyrrolidinylmethoxy] pyridine dihydrochloride; Pozanicline hydrochloride. Cas No. 161416-61-1. Molecular formula C11H16N2O. 2HCl. Molecular weight 265.18. Fine Chemicals. |
ABT-100 Quick inquiry Where to buy Suppliers range |
Synonyms: ABT-100; ABT 100; ABT100; A-367074; A 367074; A367074. Cas No. 450839-40-4. Molecular formula C27H19F3N4O3. Molecular weight 504.469. Laboratory Chemical Suppliers USA. |
ABT-102 Quick inquiry Where to buy Suppliers range |
ABT 102 is a selective transient receptor potential vanilloid 1 (TRPV1) receptor antagonist with IC50 values to be 5-7 nM. No recent reports of development identified for phase-I development in Pain in USA. Synonyms: 1-[ (1R) -5-tert-butyl-2, 3-dihydro-1H-inden-1-yl]-3- (1H-indazol-4-yl) urea. Cas No. 808756-71-0. Molecular formula C21H24N4O. Molecular weight 348.44. Laboratory Analytical Grades Available. |
ABT116 Quick inquiry Where to buy Suppliers range |
ABT116 is an antagonist of transient receptor potential vanilloid type 1. Synonyms: ABT-116; 1-[[2- (3, 3-dimethylbutyl) -4- (trifluoromethyl) phenyl]methyl]-3- (1-methylindazol-4-yl) urea. Cas No. 1008529-42-7. Molecular formula C23H27F3N4O. Molecular weight 432.49. Laboratory Chemical Suppliers USA. |
ABT-199 Where to buy Suppliers range |
ABT-199 see Venetoclax, Free Base. LC Laboratories |