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ChemicalBook >> CAS DataBase List >>[2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one

[2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one

[2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one Structure
[2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one structure
CAS No.
51773-49-0
Chemical Name:
[2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one
Synonyms
Einecs 257-409-4;Levonorgestrel Impurity 20;(2R)-2α-[(E)-2-(3,4-Dihydro-6-methoxynaphthalen)-1(2H)-ylideneethyl]-2β-ethyl-3β-hydroxycyclopentanone;[2R-[2α(E),3β]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one;(2R,3S)-2-ethyl-3-hydroxy-2-(2-((E)-6-methoxy-3,4-dihydronaphthalen-1(2H)-ylidene)ethyl)cyclopentan-1-one;Cyclopentanone, 2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthalenylidene)ethyl]-2-ethyl-3-hydroxy-, [2R-[2α(E),3β]]-;(2R-(2alpha(E),3beta))-2-(2-(3,4-Dihydro-6-methoxy-1(2H)-naphthylidene)ethyl)-2-ethyl-3-hydroxycyclopentan-1-one;[2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one
CBNumber:
CB5931431
Molecular Formula:
C20H26O3
Molecular Weight:
314.42
MDL Number:
MOL File:
51773-49-0.mol
Last updated:2026-05-12 09:14:19
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[2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one Properties

Boiling point 485.3±45.0 °C(Predicted)
Density 1.157±0.06 g/cm3(Predicted)
vapor pressure 0Pa at 25℃
pka 14.05±0.40(Predicted)
Water Solubility 23.7mg/L at 20℃
LogP 3.6 at 25℃

SAFETY

Risk and Safety Statements

Hazard statements  H412
Precautionary statements  P273-P501
REACH Registrations Active

[2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one Chemical Properties,Uses,Production

[2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one synthesis

62298-52-6
51773-49-0
Synthesis of [2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one from 3-Methoxy-18-methyl-8,14-seco-1,3,5(10),9(11)-estrateraene-14,17-dione

[2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one Preparation Products And Raw materials

Raw materials

Preparation Products

(13S-cis)-13-ethyl-7,11,12,13,16,17-hexahydro-3-methoxy-6H-cyclopenta[a]phenantren-17-ol

[2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one Suppliers

Global( 5)Suppliers
Supplier Tel Email Country ProdList Advantage
Changsha Junyu Chemexpress.co., Ltd 		+86-13723890100 info@csjyyy.cn China 134 58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. 		+8618950047208 ellena@amitychem.com China 43414 58
QUALITY CONTROL SOLUTIONS LTD. 		+86-0755-66853366 +8613670046396 export03@qcsrm.com China 24342 58
Hubei Xinyang Medical Technology Co., Ltd 15347293736 2853117764@yongstandards.com China 9999 58
Taizhou Zhongzhi Biotechnology Co., Ltd zhongzhipharma@126.c zhongzhipharma@126.com China 9652 58
Supplier Advantage
Changsha Junyu Chemexpress.co., Ltd 		58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. 		58
QUALITY CONTROL SOLUTIONS LTD. 		58
Hubei Xinyang Medical Technology Co., Ltd 58
Taizhou Zhongzhi Biotechnology Co., Ltd 58

51773-49-0([2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one )Related Search:

18,19-Dinorpregn-4-en-20-yn-3-one-2,2,4,6,6,10-d6, 13-ethyl-17-hydroxy-, (17α)- 13-Ethyl-10,17-dihydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one Levonorgestrel-3,17-diacetate Levonorgestrel Impurity 16 6-Oxo D-(-)-Norgestrel
(±)-13-ethyl-3-methoxygona-2,5(10)-dien-17beta-ol 13-Ethyl-3-methoxygona-1,3,5(10),8-tetraen-17beta-ol 13-ethyl-3-methoxy-18,19-dinor-17alpha-pregna-2,5(10)-dien-20-yn-17-ol 18,19-Dinorpregna-4,6,8(14)-trien-20-yn-3-one, 13-ethyl-17-hydroxy-, (17α)- 6β-Hydroxy Norgestrel
Levonorgestrel EP Impurity I 13-Ethyl-17-hydroxy-18,19-dinorpregn-5(10)-en-20-yn-3-one 5α-Dihydrolevonorgestrel (-)-NORGESTREL 98 6-Hydroxy-levonorgestrel
18-Methyl Nandrolone Δ5(10),6,8(9)-D-(-)-Norgestrel (±)-13-ethyl-3-methoxy-18,19-dinor-17alpha-pregna-2,5(10)-dien-20-yn-17-ol

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[2R-[2alpha(E),3beta]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one (2R)-2α-[(E)-2-(3,4-Dihydro-6-methoxynaphthalen)-1(2H)-ylideneethyl]-2β-ethyl-3β-hydroxycyclopentanone (2R-(2alpha(E),3beta))-2-(2-(3,4-Dihydro-6-methoxy-1(2H)-naphthylidene)ethyl)-2-ethyl-3-hydroxycyclopentan-1-one Einecs 257-409-4 Cyclopentanone, 2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthalenylidene)ethyl]-2-ethyl-3-hydroxy-, [2R-[2α(E),3β]]- (2R,3S)-2-ethyl-3-hydroxy-2-(2-((E)-6-methoxy-3,4-dihydronaphthalen-1(2H)-ylidene)ethyl)cyclopentan-1-one Levonorgestrel Impurity 20 [2R-[2α(E),3β]]-2-[2-(3,4-dihydro-6-methoxy-1(2H)-naphthylidene)ethyl]-2-ethyl-3-hydroxycyclopentan-1-one 51773-49-0