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157042-74-5

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157042-74-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157042-74-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,0,4 and 2 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 157042-74:
(8*1)+(7*5)+(6*7)+(5*0)+(4*4)+(3*2)+(2*7)+(1*4)=125
125 % 10 = 5
So 157042-74-5 is a valid CAS Registry Number.

157042-74-5Downstream Products

157042-74-5Relevant articles and documents

Gold(I)-catalyzed asymmetric aldol reactions of isocyanoacetic acid derivatives with fluoroaryl aldehydes

Soloshonok, Vadim A.,Kacharov, Alexey D.,Hayashi, Tamio

, p. 245 - 254 (2007/10/02)

The catalytic asymmetric synthesis of stereochemically defined fluoro-phenylserines is reported. In the title reaction, when methyl isocyanoacetate is employed, the number of fluorine atoms in the phenyl ring of benzaldehyde controls stereochemical outcom

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