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91991-04-7

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91991-04-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91991-04-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,9 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91991-04:
(7*9)+(6*1)+(5*9)+(4*9)+(3*1)+(2*0)+(1*4)=157
157 % 10 = 7
So 91991-04-7 is a valid CAS Registry Number.

91991-04-7Relevant articles and documents

Microwave-assisted Synthesis and Bioevaluation of Some Semicarbazones

Jafri, Laila,Ansari, Farzana L.,Jamil, Maryam,Kalsoom, Saima,Qureishi, Sana,Mirza, Bushra

experimental part, p. 950 - 959 (2012/08/28)

In continuation to our efforts in finding potential therapeutic agents, a variety of biologically significant semicarbazones were synthesized by the reaction of different carbonyl compounds with phenyl semicarbazides through microwave irradiation. Initial

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