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40423-82-3

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40423-82-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40423-82-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,4,2 and 3 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 40423-82:
(7*4)+(6*0)+(5*4)+(4*2)+(3*3)+(2*8)+(1*2)=83
83 % 10 = 3
So 40423-82-3 is a valid CAS Registry Number.

40423-82-3Downstream Products

40423-82-3Relevant articles and documents

SYNTHESIS AND AMINATION OF 2,4-DICHLORO-5-FLUOROPYRIMIDINE

Kovalenko, A. L.,Krutikov, V. I.,Zolotukhina, M. M.,Alekseeva, L. E.

, p. 1122 - 1125 (2007/10/02)

2,4-Dichloro-5-fluoropyrimidine was prepared by the chlorination of 5-fluorouracil with phosphorus pentachloride in absence of solvent.The reaction of 2,4-dichloro-5-pyrimidine with primary and secondary aliphatic and heteroaromatic amines in an aqueous medium yields 2-chloro-4-RR'-amino-5-fluoropyrimidines, with stereoselective substitution of chlorine in the C4 position.The substances obtained have well-defined fungicidal activity.

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