128729-57-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128729-57-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,7,2 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 128729-57:
(8*1)+(7*2)+(6*8)+(5*7)+(4*2)+(3*9)+(2*5)+(1*7)=157
157 % 10 = 7
So 128729-57-7 is a valid CAS Registry Number.
128729-57-7Relevant academic research and scientific papers
SYNTHESIS AND ANTIBACTERIAL ACTIVITY OF SOME NEW PYRIDYL DIARYLSULFIDE AND DIARYLSULFONES
El-Ezbawy, S. R.,Alshaikh, M. A.
, p. 111 - 116 (2007/10/02)
Condensation of isonicotinaldehyde with 4-aminodiphenyl sulfides I and/or sulfones II gave 4-formimidoyl>-pyridine III and/or 4--formimidoyl>pyridine IV.Cyclocondensation of mercaptoacetic acid on III and IV gave
