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193957-70-9

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193957-70-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 193957-70-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,9,5 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 193957-70:
(8*1)+(7*9)+(6*3)+(5*9)+(4*5)+(3*7)+(2*7)+(1*0)=189
189 % 10 = 9
So 193957-70-9 is a valid CAS Registry Number.

193957-70-9Relevant articles and documents

Role of the hydrophobic moiety of tumor promoters. Synthesis and activity of 2-alkylated benzolactams

Endo, Yasuyuki,Yokoyama, Akihiro

, p. 63 - 66 (2007/10/03)

The size and position of a hydrophobic moiety on a benzolactam skeleton, which reproduces the active conformation and biological activity of teleocidins, play an important role in the appearance of the activity. Compounds with alkyl groups of various sizes and shapes at the 2-position of benzolactam were synthesized. Structure-activity results indicate that a hydrophobic substituent at the C-2 position plays a critical role in the appearance of biological activities, as in the case of substitution at C-9.

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