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Chemistry

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Also known as: 474-86-2, 7-dehydroestrone, Dihydroequilenin, 3-hydroxyestra-1,3,5(10),7-tetraen-17-one, Estra-1,3,5(10),7-tetraen-17-one, 3-hydroxy-, 1,3,5,7-estratetraen-3-ol-17-one
Molecular Formula
C18H20O2
Molecular Weight
268.3  g/mol
InChI Key
WKRLQDKEXYKHJB-HFTRVMKXSA-N
FDA UNII
08O86EX0J4

Equilin
An estrogenic steroid produced by HORSES. It has a total of four double bonds in the A- and B-ring. High concentration of euilin is found in the URINE of pregnant mares.
1 2D Structure

Equilin

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
(9S,13S,14S)-3-hydroxy-13-methyl-9,11,12,14,15,16-hexahydro-6H-cyclopenta[a]phenanthren-17-one
2.1.2 InChI
InChI=1S/C18H20O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3-5,10,14,16,19H,2,6-9H2,1H3/t14-,16+,18+/m1/s1
2.1.3 InChI Key
WKRLQDKEXYKHJB-HFTRVMKXSA-N
2.1.4 Canonical SMILES
CC12CCC3C(=CCC4=C3C=CC(=C4)O)C1CCC2=O
2.1.5 Isomeric SMILES
C[C@]12CC[C@H]3C(=CCC4=C3C=CC(=C4)O)[C@@H]1CCC2=O
2.2 Other Identifiers
2.2.1 UNII
08O86EX0J4
2.3 Synonyms
2.3.1 Depositor-Supplied Synonyms

1. 474-86-2

2. 7-dehydroestrone

3. Dihydroequilenin

4. 3-hydroxyestra-1,3,5(10),7-tetraen-17-one

5. Estra-1,3,5(10),7-tetraen-17-one, 3-hydroxy-

6. 1,3,5,7-estratetraen-3-ol-17-one

7. Equilin [usp]

8. (9s,13s,14s)-3-hydroxy-13-methyl-9,11,12,14,15,16-hexahydro-6h-cyclopenta[a]phenanthren-17-one

9. Nsc-10971

10. Mls000028624

11. Chebi:42309

12. 08o86ex0j4

13. Equilin (usp)

14. Smr000058656

15. 3-hydroxy-estra-1,3,5(10),7tetraen-17-one

16. Unii-08o86ex0j4

17. Ccris 9074

18. 3-hydroxyoestra-1,3,5(10),7-tetraen-17-one

19. Cas-474-86-2

20. Prestwick_219

21. Einecs 207-488-6

22. Nsc 10971

23. Brn 2624302

24. Opera_id_780

25. Equilin [mi]

26. Equilin [mart.]

27. Prestwick0_000850

28. Prestwick1_000850

29. Prestwick2_000850

30. Prestwick3_000850

31. Equilin [usp-rs]

32. Equilin [who-dd]

33. Dsstox_cid_27433

34. Dsstox_rid_82343

35. Dsstox_gsid_47433

36. Bspbio_000839

37. 4-08-00-01366 (beilstein Handbook Reference)

38. Mls001148117

39. Schembl124758

40. Spbio_002760

41. Bpbio1_000923

42. Chembl323533

43. Equilin [usp Monograph]

44. Dtxsid7047433

45. Hms1570j21

46. Hms2097j21

47. Hms2233a16

48. Hms3714j21

49. Hy-b1176

50. Nsc10971

51. Tox21_302641

52. 1,5,7-estratetraen-3-ol-17-one

53. Bdbm50423544

54. Lmst02010026

55. Akos024285096

56. Zinc100031739

57. Ccg-220850

58. Cs-4786

59. Db02187

60. Ncgc00179406-01

61. Ncgc00256728-01

62. Equilin, Vetranal(tm), Analytical Standard

63. 3-hydroxyestra-1,5(10),7-tetraen-17-one

64. Wln: L E5 B666 Fv Juttt&j E1 Oq

65. D04041

66. S00287

67. 3-hydroxy-estra-1,3,5(10), 7-tetraen-17-one

68. 3-hydroxy-estra-1,3,5(10),7-tetraen-17-one

69. Estra-1,5(10),7-tetraen-17-one, 3-hydroxy-

70. Sr-01000721841

71. Q5384492

72. Sr-01000721841-2

73. Brd-k04046242-001-03-6

74. Equilin, European Pharmacopoeia (ep) Reference Standard

75. Equilin, United States Pharmacopeia (usp) Reference Standard

76. Equilin Solution, 1.0 Mg/ml In Methanol, Ampule Of 1 Ml, Certified Reference Material

77. (9s,13s,14s)-3-hydroxy-13-methyl-9,11,12,13,15,16-hexahydro-6h-cyclopenta[a]phenanthren-17(14h)-one

78. (9s,13s,14s)-3-hydroxy-13-methyl-9,11,12,14,15,16-hexahydro- 6h-cyclopenta[a]phenanthren-17-one

79. Equilin; 7-dehydroestrone; 3-hydroxy-1,3,5(10),7-estratetraen-17-one; 1,3,5(10),7-estratetraen-3-ol-17-one

2.4 Create Date
2005-03-26
3 Chemical and Physical Properties
Molecular Weight 268.3 g/mol
Molecular Formula C18H20O2
XLogP32.9
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass268.146329876 g/mol
Monoisotopic Mass268.146329876 g/mol
Topological Polar Surface Area37.3 Ų
Heavy Atom Count20
Formal Charge0
Complexity466
Isotope Atom Count0
Defined Atom Stereocenter Count3
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Drug and Medication Information
4.1 Drug Indication

For the treatment of moderate to severe vasomotor symptoms associated with the menopause, atrophic vaginitis, osteoporosis, hypoestrogenism due to hypogonadism, castration, primary ovarian failure, breast cancer (for palliation only), and Advanced androgen-dependent carcinoma of the prostate (for palliation only)


5 Pharmacology and Biochemistry
5.1 Pharmacology

Equilin is a component of Premarin (conjugated estrogens), a mixture of the water soluble salts of sulfate esters from estrone, equilin, 17 alpha-dihydroequilin, and other related steroids, may be derived from pregnant equine urine or yam and soy plants. Estrogens are important in the development and maintenance of the female reproductive system and secondary sex characteristics. They promote growth and development of the vagina, uterus, and fallopian tubes, and enlargement of the breasts. Indirectly, they contribute to the shaping of the skeleton, maintenance of tone and elasticity of urogenital structures, changes in the epiphyses of the long bones that allow for the pubertal growth spurt and its termination, growth of axillary and pubic hair, and pigmentation of the nipples and genitals. Decline of estrogenic activity at the end of the menstrual cycle can bring on menstruation, although the cessation of progesterone secretion is the most important factor in the mature ovulatory cycle. However, in the preovulatory or nonovulatory cycle, estrogen is the primary determinant in the onset of menstruation. Estrogens also affect the release of pituitary gonadotropins. The pharmacologic effects of conjugated estrogens are similar to those of endogenous estrogens.


5.2 Absorption, Distribution and Excretion

Absorption

Well absorbed.


5.3 Metabolism/Metabolites

Hepatic


5.4 Mechanism of Action

Estrogens enter the cells of responsive tissues (e.g., female organs, breasts, hypothalamus, pituitary) where they interact with a protein receptor, subsequently increasing the rate of synthesis of DNA, RNA, and some proteins. Estrogens decrease the secretion of gonadotropin-releasing hormone by the hypothalamus, reducing the secretion of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the pituitary.


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ABOUT THIS PAGE

Equilin Manufacturers

A Equilin manufacturer is defined as any person or entity involved in the manufacture, preparation, processing, compounding or propagation of Equilin, including repackagers and relabelers. The FDA regulates Equilin manufacturers to ensure that their products comply with relevant laws and regulations and are safe and effective to use. Equilin API Manufacturers are required to adhere to Good Manufacturing Practices (GMP) to ensure that their products are consistently manufactured to meet established quality criteria.

Equilin Suppliers

A Equilin supplier is an individual or a company that provides Equilin active pharmaceutical ingredient (API) or Equilin finished formulations upon request. The Equilin suppliers may include Equilin API manufacturers, exporters, distributors and traders.

click here to find a list of Equilin suppliers with USDMF, JDMF, KDMF, CEP, GMP, COA and API Price related information on PharmaCompass.

Equilin USDMF

A Equilin DMF (Drug Master File) is a document detailing the whole manufacturing process of Equilin active pharmaceutical ingredient (API) in detail. Different forms of Equilin DMFs exist exist since differing nations have different regulations, such as Equilin USDMF, ASMF (EDMF), JDMF, CDMF, etc.

A Equilin DMF submitted to regulatory agencies in the US is known as a USDMF. Equilin USDMF includes data on Equilin's chemical properties, information on the facilities and procedures used, and details about packaging and storage. The Equilin USDMF is kept confidential to protect the manufacturer’s intellectual property.

click here to find a list of Equilin suppliers with USDMF on PharmaCompass.

Equilin NDC

National Drug Code is a comprehensive database maintained by the FDA that contains information on all drugs marketed in the US. This directory includes information about finished drug products, unfinished drug products, and compounded drug products, including those containing Equilin as an active pharmaceutical ingredient (API).

Finished drug products

The FDA updates the NDC directory daily. The NDC numbers for Equilin API and other APIs are published in this directory by the FDA.

Unfinished drugs

The NDC unfinished drugs database includes product listing information submitted for all unfinished drugs, such as active pharmaceutical ingredients (APIs), drugs intended for further processing and bulk drug substances for compounding.

Pharmaceutical companies that manufacture Equilin as an active pharmaceutical ingredient (API) must furnish the FDA with an updated record of all drugs that they produce, prepare, propagate, compound, or process for commercial distribution in the US at their facilities.

Compounded drug products

The NDC directory also contains data on finished compounded human drug products that contain Equilin and are produced by outsourcing facilities. While these outsourcing facilities are not mandated to assign a Equilin NDC to their finished compounded human drug products, they may choose to do so.

click here to find a list of Equilin suppliers with NDC on PharmaCompass.

Equilin GMP

Equilin Active pharmaceutical ingredient (API) is produced in GMP-certified manufacturing facility.

GMP stands for Good Manufacturing Practices, which is a system used in the pharmaceutical industry to make sure that goods are regularly produced and monitored in accordance with quality standards. The FDA’s current Good Manufacturing Practices requirements are referred to as cGMP or current GMP which indicates that the company follows the most recent GMP specifications. The World Health Organization (WHO) has its own set of GMP guidelines, called the WHO GMP. Different countries can also set their own guidelines for GMP like China (Chinese GMP) or the EU (EU GMP).

PharmaCompass offers a list of Equilin GMP manufacturers, exporters & distributors, which can be sorted by USDMF, JDMF, KDMF, CEP (COS), WC, API price, and more, enabling you to easily find the right Equilin GMP manufacturer or Equilin GMP API supplier for your needs.

Equilin CoA

A Equilin CoA (Certificate of Analysis) is a formal document that attests to Equilin's compliance with Equilin specifications and serves as a tool for batch-level quality control.

Equilin CoA mostly includes findings from lab analyses of a specific batch. For each Equilin CoA document that a company creates, the USFDA specifies specific requirements, such as supplier information, material identification, transportation data, evidence of conformity and signature data.

Equilin may be tested according to a variety of international standards, such as European Pharmacopoeia (Equilin EP), Equilin JP (Japanese Pharmacopeia) and the US Pharmacopoeia (Equilin USP).

Inform the supplier about your product requirements, specifying if you need a product with particular monograph like EP (Ph. Eur.), USP, JP, BP, or any other quality. In addition, clarify whether you need hydrochloride (HCl), anhydricum, base, micronisatum or a specific level of purity. To find reputable suppliers, utilize the filters and select those certified by GMP, FDA, or any other certification as per your requirement.
For your convenience, we have listed synonyms and CAS numbers to help you find the best supplier. The use of synonyms and CAS numbers can be helpful in identifying potential suppliers, but it is crucial to note that they might not always indicate the exact same product. It is important to confirm the product details with the supplier before making a purchase to ensure that it meets your requirements.
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