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57103-66-9

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57103-66-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57103-66-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,1,0 and 3 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 57103-66:
(7*5)+(6*7)+(5*1)+(4*0)+(3*3)+(2*6)+(1*6)=109
109 % 10 = 9
So 57103-66-9 is a valid CAS Registry Number.

57103-66-9Relevant articles and documents

Lactams. XXIV. Alkaline hydrolysis of 1-benzyl-2-piperidone derivatives: application to cis-trans isomerization of the 5-ethyl-2-oxo-4-piperidineacetic acid system

Fujii,Ohba,Akiyama

, p. 1716 - 1720 (2007/10/02)

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Lactams. XXIII. Thermal cis-trans isomerization of the 5-ethyl-2-oxo-4-piperidineacetic acid system: Effect of an N-substituent

Fujii,Ohba,Yoshifuji,Akiyama

, p. 1062 - 1068 (2007/10/02)

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