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156491-65-5

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156491-65-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156491-65-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,4,9 and 1 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 156491-65:
(8*1)+(7*5)+(6*6)+(5*4)+(4*9)+(3*1)+(2*6)+(1*5)=155
155 % 10 = 5
So 156491-65-5 is a valid CAS Registry Number.

156491-65-5Relevant articles and documents

Syntheses and exploration of new biological activities in ethyl 6/7-substituted and 6, 7-disubstituted quinolin-4-one-3-carboxylates

Roy, Kamal,Srivastava, Ranjan P.,Tekwani, Babu L.,Pandey, Vikas C.,Bhaduri, Amiya P.

, p. 121 - 126 (2007/10/03)

Syntheses of a number of ethyl 1H, 4H-quinolin-4-one-3-carboxylates carrying substituted piperidinedione ring at position 6 (25 and 31-35), tetrahydrofuranone (37) or tetrahydropyridazinone ring (39) at position 7 and hydroxy and hydroxymethyl substituent

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