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137042-68-3

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137042-68-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137042-68-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,0,4 and 2 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 137042-68:
(8*1)+(7*3)+(6*7)+(5*0)+(4*4)+(3*2)+(2*6)+(1*8)=113
113 % 10 = 3
So 137042-68-3 is a valid CAS Registry Number.

137042-68-3Relevant articles and documents

A new synthesis of nitriles from N-methoxy imidoyl bromides by photolysis

Kikugawa,Fu,Sakamoto

, p. 1061 - 1069 (2007/10/02)

N-Methoxy imidoyl bromides are synthesized in one-pot from the carboxylic acids with methoxyamine and triphenylphosphine-tetrabromomethane. Photolysis of them leads to formation of the corresponding nitriles in high yield without affecting functional groups sensitive to ordinary dehydrating and halogenating reagents.

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