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111119-49-4

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111119-49-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111119-49-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,1,1 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 111119-49:
(8*1)+(7*1)+(6*1)+(5*1)+(4*1)+(3*9)+(2*4)+(1*9)=74
74 % 10 = 4
So 111119-49-4 is a valid CAS Registry Number.

111119-49-4Relevant articles and documents

Cardiotonic steroids. Part 11. An Improved Procedure for Preparation of Androst-15-en-17-one Derivatives

Groszek, Grazyna,Kabat, Marek M.,Kurek, Alicja,Masnyk, Marek,Wicha, Jerzy

, p. 305 - 311 (2007/10/02)

α,β-Unsaturated ketones 3a-3c were prepared from the corresponding saturated ketones (1a-1d) by means of sulfinylation with methyl benzenesulfinate and pyrolysis of intermediate phenylsulfinyl derivatives (2a, 2e, 2f).

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