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77204-30-9

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77204-30-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77204-30-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,2,0 and 4 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 77204-30:
(7*7)+(6*7)+(5*2)+(4*0)+(3*4)+(2*3)+(1*0)=119
119 % 10 = 9
So 77204-30-9 is a valid CAS Registry Number.

77204-30-9Relevant articles and documents

Studies on Pyrimidine Derivatives. XX. Synthetic Utility of Hydroxymethylpyrimidines and Related Compounds

Sakamoto, Takao,Tanji, Ken-Ichi,Niitsuma, Setsuko,Ono, Takayasu,Yamanaka, Hiroshi

, p. 3362 - 3368 (2007/10/02)

The conversion of a hydroxymethyl group at the 2- or 4-position of simple pyrimidines to a chloromethyl, cyanomethyl, ethoxycarbonylmethyl, or formyl group is described.Various pyrimidines having an olefinic side chain were also synthesized via Witting reagents derived from chloromethylpyrimidines.Keywords - hydroxymethylation; chloromethylpyrimidine; cyanomethylpyrimidine; pyrimidinecarbaldehyde; Witting reaction

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