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143858-98-4

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143858-98-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143858-98-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,8,5 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 143858-98:
(8*1)+(7*4)+(6*3)+(5*8)+(4*5)+(3*8)+(2*9)+(1*8)=164
164 % 10 = 4
So 143858-98-4 is a valid CAS Registry Number.

143858-98-4Relevant articles and documents

Antimitotic agents. Chiral isomers of ethyl [5-amino-1,2-dihydro-3-(4- hydroxyphenyl)-2-methylpyrido[3,4-b]pyrazin-7-yl]carbamate

Temple Jr.,Rener

, p. 988 - 993 (2007/10/02)

Metabolism studies with ethyl [5-amino-1,2-dihydro-2-methyl-3- phenylpyrido[3,4-b]pyrazin-7-yl]carbamate (1) in mice were reported previously to give a hydroxylated metabolite, which was methylated to give a methoxy derivative. The metabolite and its deri

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