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77752-56-8

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77752-56-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77752-56-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,5 and 2 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77752-56:
(7*7)+(6*7)+(5*7)+(4*5)+(3*2)+(2*5)+(1*6)=168
168 % 10 = 8
So 77752-56-8 is a valid CAS Registry Number.

77752-56-8Relevant articles and documents

The reaction of thioesters with nitriles. A new synthetic approach to the preparation of substituted 4-alkylthio- and 4-arylthiopyrimidine derivatives

Herrera, Antonio,Martínez-Alvarez, Roberto,Ramiro, Pedro

, p. 7331 - 7336 (2003)

S-Alkyl and S-aryl thioesters react with nitriles in the presence of triflic anhydride to form substituted 4-alkylthio- and 4-arylthiopyrimidines. However, when methyl thiocyanate is used as nitrile, dithioimidocarbonates are formed. A mechanism to explain these differences is postulated.

Studies on pyrimidine derivatives. XXI. Nucleophilic substitution of 4-chloropyrimidines and related compounds with carbanions

Yamanaka,Ogawa,Konno

, p. 98 - 104 (2007/10/02)

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