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129139-81-7

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129139-81-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129139-81-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,1,3 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 129139-81:
(8*1)+(7*2)+(6*9)+(5*1)+(4*3)+(3*9)+(2*8)+(1*1)=137
137 % 10 = 7
So 129139-81-7 is a valid CAS Registry Number.

129139-81-7Relevant articles and documents

4-Diazo-5-alkylsulphonamidopyrazoles: Synthesis and evaluation of biological activity

Vicentini,Veronese,Giori,Pani,Piras,Gabrielsen,La Colla

, p. 1351 - 1363 (2007/10/02)

A series of 4-diazo-5-alkylsulphonamidopyrazoles (5) was prepared and tested for antitumor, antiviral and antimicrobial activity. Compounds (5a) and (5b) showed a selective, although not very potent cytostatic activity against L1210 and a human T lymphobl

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