Beijing Keyifeng (KYF) Biotech Development Co., Ltd.

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Contact: Mr. Zhao Zheng - Sales
Web: http://www.kyfpharm.com
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Address: No.103, Liersi Village, Zhangjiawan Town, Tongzhou District, Beijing 101113, China
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Profile: Beijing Keyifeng (KYF) Biotech Development Co., Ltd. is a provider of steroids, APIs, and intermediates. Our products include levonorgestrel, ethinylestradiol, desogestrel, gestodene, estriol, trenbolone acetate, norgestimate, altrenogest, lynestrenol, melengestrol acetate, and estradiol.

10 Products/Chemicals (Click for related suppliers)

• Altrenogest

IUPAC Name: (8S,13S,14S,17R)-17-hydroxy-13-methyl-17-prop-2-enyl-1,2,6,7,8,14,15,16-octahydrocyclopenta[a]phenanthren-3-one | CAS Registry Number: 850-52-2
Synonyms: Regumate, Allyltrenbolone, Altrenogest (USAN/INN), 33994_RIEDEL, DRC-6246, RH-2267, RU-2267, CID10041070, NCGC00166309-01, D02840, A-35957, 17-alpha-Allyl-17-beta-hydroxyoestra-4,9,11-trien-3-one

Molecular Formula:	C₂₁H₂₆O₂	Molecular Weight:	310.429940 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	2

InChIKey: VWAUPFMBXBWEQY-ANULTFPQSA-N

• Desogestrel

IUPAC Name: (8S,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-11-methylidene-1,2,3,6,7,8,9,10,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-ol | CAS Registry Number: 54024-22-5
Synonyms: DESOGESTREL, desogen, Cerazette, Marvelon, Cyclessa, Mircette, Kariva, ortho-Cept, Mixture Name, Desogestrelum [INN-Latin], Org-2969, Desogestrel (USAN/INN), Desogestrel [USAN:BAN:INN], Org2969, Organon Brand of Desogestrel, HSDB 3593, ORG 2969, CHEBI:4453, EINECS 258-929-4, C22H30O

Molecular Formula:	C₂₂H₃₀O	Molecular Weight:	310.473000 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	1

InChIKey: RPLCPCMSCLEKRS-BPIQYHPVSA-N

• Estradiol

IUPAC Name: (8R,9S,13S,14S,17S)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,17-diol | CAS Registry Number: 50-28-2
Synonyms: estradiol, beta-Estradiol, 17beta-Estradiol, Estrace, progynon, Dihydroxyestrin, Oestradiol, Diogynets, Aquadiol, Dihydrofolliculin, Divigel, Vagifem, Diogyn, Dihydrotheelin, Oestroglandol, Dimenformon, Estraldine, Follicyclin, Gynoestryl, Perlatanol

Molecular Formula:	C₁₈H₂₄O₂	Molecular Weight:	272.381960 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	2

InChIKey: VOXZDWNPVJITMN-ZBRFXRBCSA-N

• Estradiol Hemihydrate

IUPAC Name: (8R,9S,13S,14S,17S)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,17-diol hydrate

Molecular Formula:	C₃₆H₅₀O₅	Molecular Weight:	562.779200 [g/mol]
H-Bond Donor:	5	H-Bond Acceptor:	5

InChIKey: ZVVGLAMWAQMPDR-WVEWYJOQSA-N

• Estriol

IUPAC Name: (8R,9S,13S,14S,16R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,16,17-triol | CAS Registry Number: 50-27-1
Synonyms: estriol, Oestriol, Estratriol, Tridestrin, Ovestrion, Ovestin, Trihydroxyestrin, Aacifemine, Oestratriol, Oestriolum, Destriol, Overstin, Orestin, Theelol, Thulol, Hemostyptanon, Ortho-Gynest, Orgastyptin, Stiptanon, Synapause

Molecular Formula:	C₁₈H₂₄O₃	Molecular Weight:	288.381360 [g/mol]
H-Bond Donor:	3	H-Bond Acceptor:	3

InChIKey: PROQIPRRNZUXQM-ZXXIGWHRSA-N

• Ethinyl Estradiol

IUPAC Name: (8R,9S,13S,14S,17R)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol | CAS Registry Number: 57-63-6
Synonyms: ethinyl estradiol, Ethynylestradiol, Ethinyloestradiol, Estinyl, Etinoestryl, Etistradiol, Ethinoral, Eticyclin, Eticyclol, Etinestrol, Etinestryl, Follicoral, Ginestrene, Novestrol, Orestralyn, Spanestrin, Amenoron, Dyloform, Estorals, Feminone

Molecular Formula:	C₂₀H₂₄O₂	Molecular Weight:	296.403360 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	2

InChIKey: BFPYWIDHMRZLRN-SLHNCBLASA-N

• Gestodene

IUPAC Name: (17R)-13-ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,14-decahydrocyclopenta[a]phenanthren-3-one | CAS Registry Number: 60282-87-3
Synonyms: GESTODENE, Gestodenum [INN-Latin], Gestodeno [INN-Spanish], Gestodene [USAN:BAN:INN], HSDB 3594, CID43249, SH B 331, EINECS 262-145-8, BRN 4237181, 17-alpha-Ethinyl-13-ethyl-17-beta-hydroxy-4,15-gonadien-3-one, 13-Ethyl-17-hydroxy-18,19-dinor-17alpha-pregna-4,15-dien-20-yn-3-one, 18,19-Dinorpregna-4,15-dien-20-yn-3-one, 13-ethyl-17-hydroxy-, (17-alpha)-, Pregna-4,15-dien-20-yn-3-one, 13-ethyl-17-hydroxy-18,19-dinor-, (17alpha)-

Molecular Formula:	C₂₁H₂₆O₂	Molecular Weight:	310.429940 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	2

InChIKey: SIGSPDASOTUPFS-KQMXEUTGSA-N

• Lynoestrenol

IUPAC Name: (8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-2,3,6,7,8,9,10,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol | CAS Registry Number: 52-76-6
Synonyms: Ethinylestrenol, Ethynylestrenol, Endometril, Linestrenol, Orgametril, Orgametrol, Orgametil, Exlution, Exlutona, Exluton, LYNESTRENOL, 3-Desoxynorlutin, Ethynloestrenol, Lynstranol, Exluten, Lynenol, Ethinyloestranol, Linesterol, Ethinyl oestrenol, Linestrenolo [DCIT]

Molecular Formula:	C₂₀H₂₈O	Molecular Weight:	284.435720 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	1

InChIKey: YNVGQYHLRCDXFQ-XGXHKTLJSA-N

• Melengestrol Acetate

IUPAC Name: [(8R,9S,10R,13S,14S,17R)-17-acetyl-6,10,13-trimethyl-16-methylidene-3-oxo-1,2,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthren-17-yl] acetate | CAS Registry Number: 2919-66-6
Synonyms: MGA, veterinary, MELENGESTROL ACETATE, Malengestrol Acetate, Melengestrol acetate (USP), MLS001332589, MLS001332590, 33998_RIEDEL, 73248_FLUKA, MGA 100, MGA 500, BDH 1921, NSC70968, NSC-70968, NCGC00166298-01, SMR000857077, C14642, D04900, 17-Hydroxy-6-methyl-16-methylenepregna-4,6-diene-3,20-dione acetate, 17-(Acetyloxy)-6-methyl-16-methylenepregna-4,6-diene-3,20-dione, 17alpha-Acetoxy-6-methyl-16-methylene-4,6-pregnadiene-3,20-dione

Molecular Formula:	C₂₅H₃₂O₄	Molecular Weight:	396.519180 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	4

InChIKey: UDKABVSQKJNZBH-DWNQPYOZSA-N

• Norgestimate

IUPAC Name: [(3E,8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-3-hydroxyimino-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-yl] acetate | CAS Registry Number: 35189-28-7
Synonyms: NORGESTIMATE, Ortho-Cyclen, Dexnorgestrel acetime, Ortho-Prefest, Mixture Name, Ortho Tri-Cyclen, Ortho Cyclen-21, Ortho Cyclen-28, Norgestimatum [INN-Latin], Norgestimato [INN-Spanish], norgestrel oxime acetate, Norgestimate (USP/INN), Norgestimate [USAN:BAN:INN], Norgestimate [USAN:INN:BAN], C23H31NO3, CHEBI:50815, ORF 10131, RWJ 10131, ORF-10131, CID6540478

Molecular Formula:	C₂₃H₃₁NO₃	Molecular Weight:	369.497140 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	4

InChIKey: KIQQMECNKUGGKA-NMYWJIRASA-N