Cas 1444124-75-7,3-ethoxy-16-methylene-17α-dimethylphenylsilylethynyl-17β-hydroxy-19-norandrosta-3,5-diene

1444124-75-7

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Basic information

Product Name: 3-ethoxy-16-methylene-17α-dimethylphenylsilylethynyl-17β-hydroxy-19-norandrosta-3,5-diene
Synonyms: 3-ethoxy-16-methylene-17α-dimethylphenylsilylethynyl-17β-hydroxy-19-norandrosta-3,5-diene
CAS NO:1444124-75-7
Molecular Formula:
Molecular Weight: 472.743
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 3-ethoxy-16-methylene-17α-dimethylphenylsilylethynyl-17β-hydroxy-19-norandrosta-3,5-diene(CAS DataBase Reference)
NIST Chemistry Reference: 3-ethoxy-16-methylene-17α-dimethylphenylsilylethynyl-17β-hydroxy-19-norandrosta-3,5-diene(1444124-75-7)
EPA Substance Registry System: 3-ethoxy-16-methylene-17α-dimethylphenylsilylethynyl-17β-hydroxy-19-norandrosta-3,5-diene(1444124-75-7)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 1444124-75-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 1444124-75-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,4,1,2 and 4 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1444124-75:
(9*1)+(8*4)+(7*4)+(6*4)+(5*1)+(4*2)+(3*4)+(2*7)+(1*5)=137
137 % 10 = 7
So 1444124-75-7 is a valid CAS Registry Number.

1444124-75-7Upstream product

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1444124-75-7Relevant academic research and scientific papers

PROCESS FOR ALKYNYLATING 16-SUBSTITUTED-17-KETO STEROIDS

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, (2013/07/05)

The invention relates to a process for ethynylating 16-methylene-17-keto steroids to the corresponding 16-methylene-17α-ethynyl-17β-hydroxy steroids by treatment with silyl-protected lithium acetylides followed by further desilylation. The resulting products are useful intermediates in the preparation of several pharmaceutically active agents, such as e.g. Nestorone? or melengestrol acetate.

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