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Coumarin Impurity 10 Coumarin Impurity 10. Uses: For analytical and research use. Group: Impurity standards. CAS No. 41044-12-6. Molecular Formula: C21H21N3O2. Mole Weight: 347.42. Catalog: APB41044126. Alfa Chemistry Analytical Products 3
Coumarin Impurity 11 Coumarin Impurity 11. Uses: For analytical and research use. Group: Impurity standards. CAS No. 41267-76-9. Molecular Formula: C16H17NO2. Mole Weight: 255.32. Catalog: APB41267769. Alfa Chemistry Analytical Products 3
Coumarin Impurity 12 Coumarin Impurity 12. Uses: For analytical and research use. Group: Impurity standards. CAS No. 305-01-1. Molecular Formula: C9H6O4. Mole Weight: 178.14. Catalog: APB305011. Alfa Chemistry Analytical Products 2
Coumarin Impurity 13 Coumarin Impurity 13. Uses: For analytical and research use. Group: Impurity standards. CAS No. 87-05-8. Molecular Formula: C12H12O3. Mole Weight: 204.23. Catalog: APB87058. Alfa Chemistry Analytical Products 3
Coumarin Impurity 14 Coumarin Impurity 14. Uses: For analytical and research use. Group: Impurity standards. CAS No. 66187-15-3. Molecular Formula: C6H7ClO3. Mole Weight: 162.57. Catalog: APB66187153. Alfa Chemistry Analytical Products 3
Coumarin Impurity 15 Coumarin Impurity 15. Uses: For analytical and research use. Group: Impurity standards. CAS No. 42286-88-4. Molecular Formula: C11H10O2. Mole Weight: 174.2. Catalog: APB42286884. Alfa Chemistry Analytical Products 3
Coumarin Impurity 16 Coumarin Impurity 16. Uses: For analytical and research use. Group: Impurity standards. CAS No. 94805-82-0. Molecular Formula: C21H20O6. Mole Weight: 368.39. Catalog: APB94805820. Alfa Chemistry Analytical Products 3
Coumarin Impurity 17 Coumarin Impurity 17. Uses: For analytical and research use. Group: Impurity standards. CAS No. 500-05-0. Molecular Formula: C6H4O4. Mole Weight: 140.09. Catalog: APB500050. Alfa Chemistry Analytical Products 2
Coumarin Impurity 18 Coumarin Impurity 18. Uses: For analytical and research use. Group: Impurity standards. CAS No. 23982-52-7. Molecular Formula: C16H17BrO5. Mole Weight: 369.21. Catalog: APB23982527. Alfa Chemistry Analytical Products 2
Coumarin Impurity 19 Coumarin Impurity 19. Uses: For analytical and research use. Group: Impurity standards. CAS No. 854626-79-2. Molecular Formula: C17H14O4. Mole Weight: 282.3. Catalog: APB854626792. Alfa Chemistry Analytical Products 3
Coumarin Impurity 2 Coumarin Impurity 2. Uses: For analytical and research use. Group: Impurity standards. CAS No. 91-44-1. Molecular Formula: C14H17NO2. Mole Weight: 231.3. Catalog: APB91441. Alfa Chemistry Analytical Products 3
Coumarin Impurity 20 Coumarin Impurity 20. Uses: For analytical and research use. Group: Impurity standards. CAS No. 86548-40-5. Molecular Formula: C22H16O5. Mole Weight: 360.37. Catalog: APB86548405. Alfa Chemistry Analytical Products 3
Coumarin Impurity 21 Coumarin Impurity 21. Uses: For analytical and research use. Group: Impurity standards. CAS No. 31005-02-4. Molecular Formula: C11H10O3. Mole Weight: 190.2. Catalog: APB31005024. Alfa Chemistry Analytical Products 3
Coumarin Impurity 22 Coumarin Impurity 22. Uses: For analytical and research use. Group: Impurity standards. CAS No. 201847-54-3. Molecular Formula: C15H15F3N2O5. Mole Weight: 360.29. Catalog: APB201847543. Alfa Chemistry Analytical Products 2
Coumarin Impurity 23 Coumarin Impurity 23. Uses: For analytical and research use. Group: Impurity standards. CAS No. 133448-22-3. Molecular Formula: C35H46ClN7O9. Mole Weight: 744.24. Catalog: APB133448223. Alfa Chemistry Analytical Products
Coumarin Impurity 24 Coumarin Impurity 24. Uses: For analytical and research use. Group: Impurity standards. CAS No. 113866-20-9. Molecular Formula: C29H42N8O8. Mole Weight: 630.7. Catalog: APB113866209. Alfa Chemistry Analytical Products
Coumarin Impurity 25 Coumarin Impurity 25. Uses: For analytical and research use. Group: Impurity standards. CAS No. 196091-78-8. Molecular Formula: C37H50O4. Mole Weight: 558.8. Catalog: APB196091788. Alfa Chemistry Analytical Products
Coumarin Impurity 26 Coumarin Impurity 26. Uses: For analytical and research use. Group: Impurity standards. CAS No. 531-81-7. Molecular Formula: C10H6O4. Mole Weight: 190.15. Catalog: APB531817. Alfa Chemistry Analytical Products 3
Coumarin Impurity 27 Coumarin Impurity 27. Uses: For analytical and research use. Group: Impurity standards. CAS No. 10543-42-7. Molecular Formula: C9H5ClO4S. Mole Weight: 244.65. Catalog: APB10543427. Alfa Chemistry Analytical Products
Coumarin Impurity 28 Coumarin Impurity 28. Uses: For analytical and research use. Group: Impurity standards. CAS No. 190788-61-5. Molecular Formula: C15H17BO4. Mole Weight: 272.11. Catalog: APB190788615. Alfa Chemistry Analytical Products
Coumarin Impurity 29 Coumarin Impurity 29. Uses: For analytical and research use. Group: Impurity standards. CAS No. 62669-74-3. Molecular Formula: C14H15NO2. Mole Weight: 229.28. Catalog: APB62669743. Alfa Chemistry Analytical Products 2
Coumarin Impurity 3 Coumarin Impurity 3. Uses: For analytical and research use. Group: Impurity standards. CAS No. 26078-25-1. Molecular Formula: C13H15NO2. Mole Weight: 217.27. Catalog: APB26078251. Alfa Chemistry Analytical Products 2
Coumarin Impurity 30 Coumarin Impurity 30. Uses: For analytical and research use. Group: Impurity standards. CAS No. 53518-14-2. Molecular Formula: C12H10F3NO2. Mole Weight: 257.21. Catalog: APB53518142. Alfa Chemistry Analytical Products 3
Coumarin Impurity 31 Coumarin Impurity 31. Uses: For analytical and research use. Group: Impurity standards. CAS No. 53518-18-6. Molecular Formula: C16H14F3NO2. Mole Weight: 309.29. Catalog: APB53518186. Alfa Chemistry Analytical Products 3
Coumarin Impurity 32 Coumarin Impurity 32. Uses: For analytical and research use. Group: Impurity standards. CAS No. 29197-94-2. Molecular Formula: C11H10NNaO5S. Mole Weight: 291.25. Catalog: APB29197942. Alfa Chemistry Analytical Products 2
Coumarin Impurity 33 Coumarin Impurity 33. Uses: For analytical and research use. Group: Impurity standards. CAS No. 55804-70-1. Molecular Formula: C13H12F3NO2. Mole Weight: 271.24. Catalog: APB55804701. Alfa Chemistry Analytical Products 2
Coumarin Impurity 34 Coumarin Impurity 34. Uses: For analytical and research use. Group: Impurity standards. CAS No. 55804-66-5. Molecular Formula: C18H19NO4. Mole Weight: 313.35. Catalog: APB55804665. Alfa Chemistry Analytical Products 2
Coumarin Impurity 35 Coumarin Impurity 35. Uses: For analytical and research use. Group: Impurity standards. CAS No. 55804-67-6. Molecular Formula: C17H17NO3. Mole Weight: 283.33. Catalog: APB55804676. Alfa Chemistry Analytical Products 2
Coumarin Impurity 36 Coumarin Impurity 36. Uses: For analytical and research use. Group: Impurity standards. CAS No. 55804-68-7. Molecular Formula: C16H14N2O2. Mole Weight: 266.3. Catalog: APB55804687. Alfa Chemistry Analytical Products 2
Coumarin Impurity 37 Coumarin Impurity 37. Uses: For analytical and research use. Group: Impurity standards. CAS No. 62669-75-4. Molecular Formula: C20H23NO4. Mole Weight: 341.41. Catalog: APB62669754. Alfa Chemistry Analytical Products 2
Coumarin Impurity 38 Coumarin Impurity 38. Uses: For analytical and research use. Group: Impurity standards. CAS No. 55804-65-4. Molecular Formula: C16H15NO4. Mole Weight: 285.3. Catalog: APB55804654. Alfa Chemistry Analytical Products 2
Coumarin Impurity 39 Coumarin Impurity 39. Uses: For analytical and research use. Group: Impurity standards. CAS No. 20571-42-0. Molecular Formula: C13H15NO2. Mole Weight: 217.27. Catalog: APB20571420. Alfa Chemistry Analytical Products 2
Coumarin Impurity 4 Coumarin Impurity 4. Uses: For analytical and research use. Group: Impurity standards. CAS No. 38215-36-0. Molecular Formula: C20H18N2O2S. Mole Weight: 350.44. Catalog: APB38215360. Alfa Chemistry Analytical Products 2
Coumarin Impurity 40 Coumarin Impurity 40. Uses: For analytical and research use. Group: Impurity standards. CAS No. 41175-45-5. Molecular Formula: C18H19NO2. Mole Weight: 281.36. Catalog: APB41175455. Alfa Chemistry Analytical Products 3
Coumarin Impurity 41 Coumarin Impurity 41. Uses: For analytical and research use. Group: Impurity standards. CAS No. 87331-48-4. Molecular Formula: C16H17NO4S. Mole Weight: 319.38. Catalog: APB87331484. Alfa Chemistry Analytical Products 3
Coumarin Impurity 42 Coumarin Impurity 42. Uses: For analytical and research use. Group: Impurity standards. CAS No. 113869-06-0. Molecular Formula: C22H27NO4. Mole Weight: 369.46. Catalog: APB113869060. Alfa Chemistry Analytical Products
Coumarin Impurity 43 Coumarin Impurity 43. Uses: For analytical and research use. Group: Impurity standards. CAS No. 87349-92-6. Molecular Formula: C20H18N2O2. Mole Weight: 318.38. Catalog: APB87349926. Alfa Chemistry Analytical Products 3
Coumarin Impurity 45 Coumarin Impurity 45. Uses: For analytical and research use. Group: Impurity standards. CAS No. 87331-47-3. Molecular Formula: C22H18N2O3. Mole Weight: 358.4. Catalog: APB87331473. Alfa Chemistry Analytical Products 3
Coumarin Impurity 46 Coumarin Impurity 46. Uses: For analytical and research use. Group: Impurity standards. CAS No. 85642-11-1. Molecular Formula: C22H18N2O2S. Mole Weight: 374.46. Catalog: APB85642111. Alfa Chemistry Analytical Products 3
Coumarin Impurity 47 Coumarin Impurity 47. Uses: For analytical and research use. Group: Impurity standards. CAS No. 155306-71-1. Molecular Formula: C26H26N2O2S. Mole Weight: 430.57. Catalog: APB155306711. Alfa Chemistry Analytical Products
Coumarin Impurity 48 Coumarin Impurity 48. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1260635-77-5. Molecular Formula: C18H22N2O5. Mole Weight: 346.38. Catalog: APB1260635775. Alfa Chemistry Analytical Products
Coumarin Impurity 49 Coumarin Impurity 49. Uses: For analytical and research use. Group: Impurity standards. CAS No. 201847-52-1. Molecular Formula: C15H15F3N2O5. Mole Weight: 360.29. Catalog: APB201847521. Alfa Chemistry Analytical Products 2
Coumarin Impurity 5 Coumarin Impurity 5. Uses: For analytical and research use. Group: Impurity standards. CAS No. 58336-35-9. Molecular Formula: C15H15NO2. Mole Weight: 241.29. Catalog: APB58336359. Alfa Chemistry Analytical Products 2
Coumarin Impurity 50 Coumarin Impurity 50. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1056693-13-0. Molecular Formula: C30H23NO4. Mole Weight: 461.52. Catalog: APB1056693130. Alfa Chemistry Analytical Products
Coumarin Impurity 51 Coumarin Impurity 51. Uses: For analytical and research use. Group: Impurity standards. CAS No. 2199-90-8. Molecular Formula: C12H9BrO4. Mole Weight: 297.1. Catalog: APB2199908. Alfa Chemistry Analytical Products 2
Coumarin Impurity 52 Coumarin Impurity 52. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1084-45-3. Molecular Formula: C12H10O5. Mole Weight: 234.21. Catalog: APB1084453. Alfa Chemistry Analytical Products
Coumarin Impurity 54 Coumarin Impurity 54. Uses: For analytical and research use. Group: Impurity standards. CAS No. 524698-40-6. Molecular Formula: C28H23NO7. Mole Weight: 485.49. Catalog: APB524698406. Alfa Chemistry Analytical Products 3
Coumarin Impurity 55 Coumarin Impurity 55. Uses: For analytical and research use. Group: Impurity standards. CAS No. 957311-37-4. Molecular Formula: C30H26N2O7. Mole Weight: 526.55. Catalog: APB957311374. Alfa Chemistry Analytical Products 4
Coumarin Impurity 6 Coumarin Impurity 6. Uses: For analytical and research use. Group: Impurity standards. CAS No. 27425-55-4. Molecular Formula: C20H19N3O2. Mole Weight: 333.39. Catalog: APB27425554. Alfa Chemistry Analytical Products 2
Coumarin Impurity 7 Coumarin Impurity 7. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1786-05-6. Molecular Formula: C15H10O3. Mole Weight: 238.24. Catalog: APB1786056. Alfa Chemistry Analytical Products
Coumarin Impurity 8 Coumarin Impurity 8. Uses: For analytical and research use. Group: Impurity standards. CAS No. 531-59-9. Molecular Formula: C10H8O3. Mole Weight: 176.17. Catalog: APB531599. Alfa Chemistry Analytical Products 3
Coumarin Impurity 9 Coumarin Impurity 9. Uses: For analytical and research use. Group: Impurity standards. CAS No. 6093-67-0. Molecular Formula: C9H6O3. Mole Weight: 162.14. Catalog: APB6093670. Alfa Chemistry Analytical Products 3
4',5'-Dihydro-8-methoxy Psoralen 4',5'-Dihydro-8-methoxypsoralen is a furocouramin derivative with insect antifeeding activity. 4',5'-Dihydro-8-methoxypsoralen is dihydro impurity as well as a metabolite of 8-Methoxypsoralen , also known as Methoxsalen. Group: Biochemicals. Alternative Names: 2,3-Dihydro-9-methoxy-7H-furo[3,2-g][1]benzopyran-7-one;2,3-Dihydro-6-hydroxy-7-methoxy-5-benzofuranacrylic Acid δ-Lactone; 4',5'-Dihydro-8-methoxypsoralen; 9-Methoxy-2,3-dihydrofuro[3,2-g]coumarin; NSC 401281. Grades: Highly Purified. CAS No. 3779-3-1. Pack Sizes: 25mg. US Biological Life Sciences. USBiological 2
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Coumarin Coumarin. Uses: For analytical and research use. Group: Impurity standards. CAS No. 4434-5-3. Molecular Formula: C55H59N5O20. Mole Weight: 1110.09. Catalog: APB4434053. Alfa Chemistry Analytical Products 2
Phenprocoumon D-Glucuronide An impurity of Phenprocoumon which is a derivative of coumarin. Grades: > 95%. Molecular formula: C25H26O8. Mole weight: 454.48. BOC Sciences 7
Umbelliferone 7-O-Rutinoside An impurity of Umbelliferone. Umbelliferone is a metabolite of Coumarin. Umbelliferone is used as a sunscreen agent for its ultraviolet activity. CAS No. 135064-04-9. Molecular formula: C21H26O13. Mole weight: 486.43. BOC Sciences 7
6-Hydroxy Warfarin One of the impurities of Warfarin, which is a kind of Coumarin anticoagulant. Synonyms: 4,6-Dihydroxy-3-(3-oxo-1-phenylbutyl)-2H-1-benzopyran-2-one; 3-(α-Acetonylbenzyl)-4,6-dihydroxycoumarin. CAS No. 17834-02-5. Molecular formula: C19H16O5. Mole weight: 324.34. BOC Sciences 7
7-Hydroxy Warfarin One of the impurities of Warfarin, which is a kind of Coumarin anticoagulant. Synonyms: 4,7-Dihydroxy-3-(3-oxo-1-phenylbutyl)-2H-1-benzopyran-2-one; 3-(α-Acetonylbenzyl)-4,7-dihydroxycoumarin. CAS No. 17834-03-6. Molecular formula: C19H16O5. Mole weight: 324.34. BOC Sciences 7
8-Hydroxy Warfarin One of the impurities of Warfarin, which is a kind of Coumarin anticoagulant. Synonyms: 4,8-Dihydroxy-3-(3-oxo-1-phenylbutyl)-2H-1-benzopyran-2-one; 3-(α-Αcetonylbenzyl)-4,8-dihydroxycoumarin. CAS No. 17834-04-7. Molecular formula: C19H16O5. Mole weight: 324.34. BOC Sciences 7
Cetirizine Impurity (4-Chlorobenzophenone) 4-Chlorobenzophenone, is a building block used in various chemical synthesis. It can be used for the preparation of a variety of functionalized Coumarin derivatives. Synonyms: (4-Chlorophenyl)phenylmethanone; 4-Benzoylphenyl Chloride; 4-CBP; 4-Chlorobenzophenone; 4-Chlorophenyl Phenyl Ketone; CBP; Initiator 1046; NSC 2872; Phenyl 4-Chlorophenyl Ketone; p-CBP; p-Chlorobenzophenone; p-Chlorophenyl Phenyl Ketone. Grades: > 95%. CAS No. 134-85-0. Molecular formula: C13H9ClO. Mole weight: 216.67. BOC Sciences 7
Dehydro Warfarin One of the impurities of Warfarin, which is a kind of Coumarin anticoagulant. Synonyms: Dehydrowarfarin; 4-Hydroxy-3-(3-oxo-1-phenyl-1-buten-1-yl)-2H-1-benzopyran-2-one; NSC 289346. CAS No. 67588-18-5. Molecular formula: C19H14O4. Mole weight: 306.32. BOC Sciences 7
(R)-6-Hydroxy Warfarin One of the impurities of Warfarin, which is a kind of Coumarin anticoagulant. Synonyms: 4,6-Dihydroxy-3-[(1R)-3-oxo-1-phenylbutyl]-2H-1-benzopyran-2-one; (R)-4,6-Dihydroxy-3-(3-oxo-1-phenylbutyl)-2H-1-benzopyran-2-one; (R)-6-Hydroxywarfarin; 6-Hydroxy-R-warfarin. CAS No. 63740-75-0. Molecular formula: C19H16O5. Mole weight: 324.34. BOC Sciences 7
(R)-7-Hydroxy Warfarin One of the isotopic labelled impurities of Warfarin, which is a kind of Coumarin anticoagulant. Synonyms: 4,7-Dihydroxy-3-[(1R)-3-oxo-1-phenylbutyl]-2H-1-benzopyran-2-one; (R)-4,7-Dihydroxy-3-(3-oxo-1-phenylbutyl)2H-1-benzopyran-2-one; 7-Hydroxy-R-warfarin; R-7-Hydroxywarfarin. CAS No. 63740-76-1. Molecular formula: C19H16O5. Mole weight: 324.34. BOC Sciences 7
(S)-6-Hydroxy Warfarin One of the impurities of Warfarin, which is a kind of Coumarin anticoagulant. Synonyms: 4,6-Dihydroxy-3-[(1S)-3-oxo-1-phenylbutyl]-2H-1-benzopyran-2-one; (S)-4,6-Dihydroxy-3-(3-oxo-1-phenylbutyl)-2H-1-benzopyran-2-one; (S)-6-Hydroxywarfarin; 6-Hydroxy-S-warfarin. CAS No. 63740-80-7. Molecular formula: C19H16O5. Mole weight: 324.34. BOC Sciences 7
(S)-7-Hydroxy Warfarin One of the impurities of Warfarin, which is a kind of Coumarin anticoagulant. Synonyms: 4,7-Dihydroxy-3-[(1S)-3-oxo-1-phenylbutyl]-2H-1-benzopyran-2-one; (S)-4,7-Dihydroxy-3-(3-oxo-1-phenylbutyl)2H-1-benzopyran-2-one; 7-Hydroxy-S-warfarin. CAS No. 63740-81-8. Molecular formula: C19H16O5. Mole weight: 324.34. BOC Sciences 7
(S)-8-Hydroxy Warfarin One of the impurities of Warfarin, which is a kind of Coumarin anticoagulant. Synonyms: 4,8-Dihydroxy-3-[(1S)-3-oxo-1-phenylbutyl]-2H-1-benzopyran-2-one; (S)-4,8-dihydroxy-3-(3-oxo-1-phenylbutyl)-2H-1-Benzopyran-2-one; (S)-8-Hydroxywarfarin; 8-Hydroxy-S-warfarin; S-8-Hydroxywarfarin. CAS No. 63740-82-9. Molecular formula: C19H16O5. Mole weight: 324.34. BOC Sciences 7
Technocolor Purple 3 One of the impurities of Tecarfarin, which is a coumarin derivative and has been found to be an inhibitor of anticoagulant as well as direct thrombin. Synonyms: 1,3,3-Trimethylindolino-6'-(1-piperidinyl)spironaphthoxazine. Grades: > 95%. CAS No. 114747-45-7. Molecular formula: C27H29N3O. Mole weight: 411.55. BOC Sciences 7
Warfarin Impurity 1 One of the impurities of Warfarin, which is a kind of Coumarin anticoagulant. CAS No. 55901-61-6. Molecular formula: C13H14O. Mole weight: 186.26. BOC Sciences 7

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