Cas 98994-05-9,4-chloro-6-phenylazopyrimidine

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Check Digit Verification of cas no

The CAS Registry Mumber 98994-05-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,9 and 4 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 98994-05:
(7*9)+(6*8)+(5*9)+(4*9)+(3*4)+(2*0)+(1*5)=209
209 % 10 = 9
So 98994-05-9 is a valid CAS Registry Number.

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98994-05-9Relevant academic research and scientific papers

ACYLATION AND OXIDATION OF 4-CHLORO-6-HYDROXYAMINOPYRIMIDINES. SYNTHESIS OF 4-CHLORO-6-NITRO(NITROSO)PYRIMIDINES

Yagodina, O. V.,Sedova, V. F.,Mamaev, V. P.

, p. 908 - 913 (1989)

Treatment of 2-R-4,6-dichloropyrimidines with hydroxylamine gives 2-R-4-chloro-6-hydroxyaminopyrimidines, which are converted to mono- and diacyl derivatives upon acylation.Oxidation of 4-chloro-6-hydroxyaminopyrimidines with manganese dioxide or ozone gi

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