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65538-83-2

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65538-83-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 65538-83-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,5,3 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 65538-83:
(7*6)+(6*5)+(5*5)+(4*3)+(3*8)+(2*8)+(1*3)=152
152 % 10 = 2
So 65538-83-2 is a valid CAS Registry Number.

65538-83-2Downstream Products

65538-83-2Relevant articles and documents

Extremely Selective and Mild Cleavage of β-Haloalkyl Groups by Cobalt(I)phthalocyanine Anion in Semisyntheses of β-Lactam Antibiotics

Eckert, Heiner

, p. 1715 - 1724 (2007/10/02)

Cleavage of β-haloalkyl groups can be performed extremely selectively by cobalt(I)phthalocyanine anion under very mild conditions, qualifying it best in the chemistry of highly sensitive β-lactam antibiotics.This is demonstrated in penicillin and cephalosporin semisyntheses.

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