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78754-91-3

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78754-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78754-91-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,7,5 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78754-91:
(7*7)+(6*8)+(5*7)+(4*5)+(3*4)+(2*9)+(1*1)=183
183 % 10 = 3
So 78754-91-3 is a valid CAS Registry Number.

78754-91-3Relevant articles and documents

Reactions of o-Aminonitriles with Isocyanates. 2. A Facile Synthesis of Imidazoquinazoline-2,5-(3H,6H)dione

Papadopoulos, Eleftherios Paul

, p. 515 - 518 (2007/10/02)

Anthranilonitrile reacts with ethyl isocyanatoacetate to form 2-(3-ethoxycarbonylmethylureido)benzonitrile (3b) which, upon heating, or treatment with a base, undergoes a double cyclization to yield imidazo-quinazoline-2,5-(3H,6H)dione (5) in excel

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