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83143-21-9

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83143-21-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83143-21-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,1,4 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 83143-21:
(7*8)+(6*3)+(5*1)+(4*4)+(3*3)+(2*2)+(1*1)=109
109 % 10 = 9
So 83143-21-9 is a valid CAS Registry Number.

83143-21-9Relevant articles and documents

The Synthesis of 4,11,18,25-Tetrachloro4>metacyclophane-7,14,21,28-tetrol. Structural Analogues of Phloroglucides

Moshfegh, Ali A.,Badri, Rashid,Hojjatie, Massoud,Kaviani, Mehrangiz,Naderi, Basirat,et al.

, p. 1221 - 1228 (2007/10/02)

The synthesis of the title compounds is described.Some of the compounds prepared exhibited antimicrobial activity in vitro.Structure-activity relationship is briefly discussed.

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