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1637484-93-5

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1637484-93-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1637484-93-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,7,4,8 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1637484-93:
(9*1)+(8*6)+(7*3)+(6*7)+(5*4)+(4*8)+(3*4)+(2*9)+(1*3)=205
205 % 10 = 5
So 1637484-93-5 is a valid CAS Registry Number.

1637484-93-5Downstream Products

1637484-93-5Relevant articles and documents

An efficient synthesis of novel bis-chalcones and bis-pyrazolines in the presence of cellulose sulfuric acid as biodegradable catalyst under solvent-free conditions

Siddiqui, Zeba N.,Khan, Tabassum

, p. 1002 - 1011 (2014/07/07)

A highly efficient and practical approach for the synthesis of novel heterocyclic bis-chalcones and corresponding pyrazolines has been developed using cellulose sulfuric acid as environmentally benign, biodegradable and reusable catalyst under solvent-free conditions. The catalyst can be reused several times without significant loss of its catalytic activity.

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