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64544-72-5

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64544-72-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64544-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,5,4 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 64544-72:
(7*6)+(6*4)+(5*5)+(4*4)+(3*4)+(2*7)+(1*2)=135
135 % 10 = 5
So 64544-72-5 is a valid CAS Registry Number.

64544-72-5Upstream product

64544-72-5Downstream Products

64544-72-5Relevant articles and documents

Reactions of Pyridoxal Derivatives with Phenyl Iso(thio)cyanates

Burilov, A. R.,Dobrynin, A. B.,Kibardina, L. K.,Pudovik, M. A.,Trifonov, A. V.

, p. 1431 - 1437 (2021/09/11)

Abstract: The reaction of phenyl isocyanate with pyridoxal is carried out with the participation of hydroxymethyl and phenolic groups with the formation of dicarbamate derivatives. The reactions of pyridoxal azomethines with phenyl isocyanate, depending on the structure and the ratio of the starting reagents, lead to the formation of mono-, di- or tricarbamate derivatives. The product of addition of azomethine pyridoxal to phenyl isocyanate with the participation of a hydroxymethyl group was obtained.

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