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857502-26-2

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857502-26-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 857502-26-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,5,0 and 2 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 857502-26:
(8*8)+(7*5)+(6*7)+(5*5)+(4*0)+(3*2)+(2*2)+(1*6)=182
182 % 10 = 2
So 857502-26-2 is a valid CAS Registry Number.

857502-26-2Downstream Products

857502-26-2Relevant articles and documents

A new entry to pyrazolo[4,3-e][1,4]diazepines. Facile synthesis of pyrazolo [4,3-e][1,4]diazepin-5,8-diones, 5,6,8-triones and pyrazolo[4,3-e]pyrrolo-[1,2- a][1,4]diazepin-5,10-diones

Reddy, Nalla Ram,Reddy, Ghanta Mahesh,Reddy, Padi Pratap

, p. 675 - 678 (2007/10/03)

A facile approach to pyrazolo[4,3-e][1,4]diazepin-5,8-diones and pyrazolo[4,3-e]pyrrolo[1,2-a][1,4]-diazepin-5,10-diones is reported. Strategy involved the utility of α-amino acid as a three-atom segment in the construction of diazepine skeleton on the pr

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