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81123-61-7

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81123-61-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81123-61-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,2 and 3 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81123-61:
(7*8)+(6*1)+(5*1)+(4*2)+(3*3)+(2*6)+(1*1)=97
97 % 10 = 7
So 81123-61-7 is a valid CAS Registry Number.

81123-61-7Downstream Products

81123-61-7Relevant articles and documents

Reactions of aliphatic diazo compounds: IV. Reaction of diphenyldiazomethane with substituted imides of maleic and itaconic acids

Molchanov,Diev,Kostikov

, p. 259 - 263 (2007/10/03)

Diphenyldiazomethane regioselectively adds to 2-R-substituted maleimides to yield 1-pyrazoline derivatives, 1-R-7-aryl-6,8-dioxo-4,4-diphenyl-2,3,7-triazabicyclo[3.3.0]oct-2-enes that on heating liberate nitrogen to afford substituted 3-azabicyclo[3.1.0]h

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