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874195-49-0

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874195-49-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 874195-49-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,4,1,9 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 874195-49:
(8*8)+(7*7)+(6*4)+(5*1)+(4*9)+(3*5)+(2*4)+(1*9)=210
210 % 10 = 0
So 874195-49-0 is a valid CAS Registry Number.

874195-49-0Relevant articles and documents

Efficient synthesis of 6-amino-substituted pyridin-2(1H)-ones using in situ generated propiolic acid chloride

Schirok, Hartmut,Alonso-Alija, Cristina,Michels, Martin

, p. 3085 - 3094 (2007/10/03)

A regioselective and highly efficient synthesis of 6-amino-substituted pyridin-2(1H)-ones is presented. In situ generated propiolic acid chloride was used for the cyclization of acyclic β-keto N,S-acetals to afford the heterocyclic core. Substitution by a

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