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91118-97-7

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91118-97-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91118-97-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,1 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 91118-97:
(7*9)+(6*1)+(5*1)+(4*1)+(3*8)+(2*9)+(1*7)=127
127 % 10 = 7
So 91118-97-7 is a valid CAS Registry Number.

91118-97-7Downstream Products

91118-97-7Relevant articles and documents

A Facile Synthesis of 3-Aryl-2-styryl- and 3-Aryl-2-methylpyridoquinazolin-4(3H)-ones

Reddy, M. Satyanarayana,Ratnam, C. V.

, p. 1100 - 1102 (2007/10/02)

Condensation of 2-methyl-4H-pyrido-3,1-benzoxazin-4-one (I) with schiff bases (II) and aromatic amines in acetic acid gives 3-aryl-2-styrylpyridoquinazolin-4(3H)-ones (III) and 3-aryl-2-methylpyridoquinazolin-4(3H)-ones (V) respectively in excellent yields.

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