Cas 267410-53-7,Toluene-4-sulfonic acid (Z)-(R)-2-((1aR,3aR,3bS,5aS,6R,8aS,8bS,10R,10aR)-10-methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)-6-methyl-5-trimethylsilanyl-hept-4-enyl ester

267410-53-7

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Basic information

Product Name: Toluene-4-sulfonic acid (Z)-(R)-2-((1aR,3aR,3bS,5aS,6R,8aS,8bS,10R,10aR)-10-methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)-6-methyl-5-trimethylsilanyl-hept-4-enyl ester
Synonyms:
CAS NO:267410-53-7
Molecular Formula:
Molecular Weight: 641.043
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: Toluene-4-sulfonic acid (Z)-(R)-2-((1aR,3aR,3bS,5aS,6R,8aS,8bS,10R,10aR)-10-methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)-6-methyl-5-trimethylsilanyl-hept-4-enyl ester(CAS DataBase Reference)
NIST Chemistry Reference: Toluene-4-sulfonic acid (Z)-(R)-2-((1aR,3aR,3bS,5aS,6R,8aS,8bS,10R,10aR)-10-methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)-6-methyl-5-trimethylsilanyl-hept-4-enyl ester(267410-53-7)
EPA Substance Registry System: Toluene-4-sulfonic acid (Z)-(R)-2-((1aR,3aR,3bS,5aS,6R,8aS,8bS,10R,10aR)-10-methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)-6-methyl-5-trimethylsilanyl-hept-4-enyl ester(267410-53-7)

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: 267410-53-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 267410-53-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,7,4,1 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 267410-53:
(8*2)+(7*6)+(6*7)+(5*4)+(4*1)+(3*0)+(2*5)+(1*3)=137
137 % 10 = 7
So 267410-53-7 is a valid CAS Registry Number.

267410-53-7Upstream product

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267410-53-7Relevant academic research and scientific papers

Synthesis of (23R)- and (23S)-23H-isocalysterols, marine sterols with a cyclopropene moiety in the side chain

Kurek-Tyrlik, Alicja,Minksztym, Kazimierz,Wicha, Jerzy

, p. 1027 - 1036 (2007/10/03)

A synthesis of (23R)- and (23S)-23H-calysterols 2a and 2b from pregnanoic ester 10 is reported. Alkylation of 10 with dibromide 19b, followed by reduction of the carboethyloxy group to a methyl group, afforded (Z)-vinylic bromide 22. Dibromocyclopropanati

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