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4-Methyl-benzenesulfinic acid (8S,9S,10R,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

83040-00-0

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83040-00-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83040-00-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,0,4 and 0 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 83040-00:
(7*8)+(6*3)+(5*0)+(4*4)+(3*0)+(2*0)+(1*0)=90
90 % 10 = 0
So 83040-00-0 is a valid CAS Registry Number.

83040-00-0Downstream Products

83040-00-0Relevant academic research and scientific papers

O-sulfinylation with methanesulfonyl cyanide or p-toluenesulfonyl cyanide and DBU

Barton,Jaszberenyi,Theodorakis

, p. 2585 - 2588 (1991)

Reaction of methanesulfonyl cyanide or p-toluenesulfonyl cyanide with alcohols in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) gives sulfinates in good yield. A mechanistic scheme involving sulfinyl cyanates is suggested.

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