Cas 218937-41-8,(20R)-6-β-hydroxy-5-methyl-19-nor-5β-pregn-9-ene-3β,20-diyl 3,20-dibenzoate

218937-41-8

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Basic information

Product Name: (20R)-6-β-hydroxy-5-methyl-19-nor-5β-pregn-9-ene-3β,20-diyl 3,20-dibenzoate
Synonyms: (20R)-6-β-hydroxy-5-methyl-19-nor-5β-pregn-9-ene-3β,20-diyl 3,20-dibenzoate
CAS NO:218937-41-8
Molecular Formula:
Molecular Weight: 542.715
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: (20R)-6-β-hydroxy-5-methyl-19-nor-5β-pregn-9-ene-3β,20-diyl 3,20-dibenzoate(CAS DataBase Reference)
NIST Chemistry Reference: (20R)-6-β-hydroxy-5-methyl-19-nor-5β-pregn-9-ene-3β,20-diyl 3,20-dibenzoate(218937-41-8)
EPA Substance Registry System: (20R)-6-β-hydroxy-5-methyl-19-nor-5β-pregn-9-ene-3β,20-diyl 3,20-dibenzoate(218937-41-8)

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: 218937-41-8(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 218937-41-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,8,9,3 and 7 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 218937-41:
(8*2)+(7*1)+(6*8)+(5*9)+(4*3)+(3*7)+(2*4)+(1*1)=158
158 % 10 = 8
So 218937-41-8 is a valid CAS Registry Number.

218937-41-8Upstream product

218937-39-4 (20R)-5-methyl-19-nor-5β-pregn-9-ene-3β,6β,20-triyl 6-acetate 3,20-dibenzoate

218937-41-8Downstream Products

218937-41-8Relevant academic research and scientific papers

Hydrogenation of a tetrasubstituted double bond: Synthesis of 5-methyl-19-nor-5β-pregnanes

Kasal, Alexander,Polman, Jiri,Budesinsky, Milos

, p. 1549 - 1563 (1998)

Reduction of C=C and/or C=O bonds in 5-methyl-19-nor-5β-pregn-9-ene-3,20-dione (1) leads to saturated and unsaturated ketones and hydroxy ketones. The C=C reduction affords mainly 9β,10β and 9α,10β dihydro products. Reaction conditions of partial esterifi

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