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143389-39-3

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143389-39-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143389-39-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,3,8 and 9 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143389-39:
(8*1)+(7*4)+(6*3)+(5*3)+(4*8)+(3*9)+(2*3)+(1*9)=143
143 % 10 = 3
So 143389-39-3 is a valid CAS Registry Number.

143389-39-3Downstream Products

143389-39-3Relevant articles and documents

Bromometric assay of secobarbital sodium

Gorlitzer,Boventer

, p. 291 - 295 (2007/10/02)

Secobarbital sodium (1a) and the 1,3-bis-(4-nitrobenzyl)barbituric acid 2 react with KBrO3 and KBr in acetic acid/HCl to yield the bromohydrines 3 and the dibromo compounds 5. Dehydrobromination leads to the pyrano[2,3-d]pyrimidines 7 and 8, re

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