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123314-55-6

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123314-55-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123314-55-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,3,1 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 123314-55:
(8*1)+(7*2)+(6*3)+(5*3)+(4*1)+(3*4)+(2*5)+(1*5)=86
86 % 10 = 6
So 123314-55-6 is a valid CAS Registry Number.

123314-55-6Relevant articles and documents

The Roles of the Carboxy Group in β-Lactam Antibiotics and Lysine 234 in β-Lactamase I

Laws, Andrew P.,Layland, Nicola J.,Proctor, David G.,Page, Michael I.

, p. 17 - 21 (2007/10/02)

The replacement of the C3 carboxylate in phenoxymethylpenicillin by a hydroxymethyl group and of the C4 carboxylate in cephalosporins by both a lactone and an aldehyde gives derivatives which are still good substrates for Bacillus cereus 569/H β-lactamase

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