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137204-68-3

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137204-68-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137204-68-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,0 and 4 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 137204-68:
(8*1)+(7*3)+(6*7)+(5*2)+(4*0)+(3*4)+(2*6)+(1*8)=113
113 % 10 = 3
So 137204-68-3 is a valid CAS Registry Number.

137204-68-3Relevant articles and documents

Synthetic applications of stereodefined 2-substituted 1-silyl-1-stannylethenes: A new synthesis of 5-ethenyl-5'-(1-propynyl)-2,2'-bithiophene, a naturally-occurring phototoxin

Rossi,Carpita,Messeri

, p. 1875 - 1888 (1991)

(E)-2-(5-Trimethylstannyl-2-thienyl)ethenyldimethylphenylsilane, (E)-8, which can be stereospecifically prepared from (Z)-1-dimethylphenylsilyl-2-(2-thienyl)-1-trimethylstannyl-ethene, (Z)-6, or from (E)-2-(2-thienyl)ethenyldimethylphenylsilane, (E)-9, se

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