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76640-37-4

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76640-37-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 76640-37-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,6,4 and 0 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 76640-37:
(7*7)+(6*6)+(5*6)+(4*4)+(3*0)+(2*3)+(1*7)=144
144 % 10 = 4
So 76640-37-4 is a valid CAS Registry Number.

76640-37-4Relevant articles and documents

Synthesis of Some Novel Di- and Tri-β-lactams from Glycine

Sharma, S. D.,Mehra, Usha

, p. 545 - 551 (2007/10/02)

Annelation of the schiff bases (II) with appropriate β-lactam acids (I) results in the formation of di-β-lactams (III).Alternately IIIb can also be prepared as follows: Potassium carbethoxyacetonylglycinate (IV) on treatment with schiff base (IIb) using P

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