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138638-50-3

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138638-50-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138638-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,3 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 138638-50:
(8*1)+(7*3)+(6*8)+(5*6)+(4*3)+(3*8)+(2*5)+(1*0)=153
153 % 10 = 3
So 138638-50-3 is a valid CAS Registry Number.

138638-50-3Downstream Products

138638-50-3Relevant articles and documents

REACTION OF AROMATIC NITRILE OXIDES WITH SULFONYL ISOCYANATES

Esipenko, A. A.,Fetyukhin, V. N.,Kramarenko, F. G.,Chernega, A. N.,Samarai, L. I.,Pirozhenko, V. V.

, p. 1101 - 1108 (2007/10/02)

The reaction of aromatic nitrile oxides with sulfonyl isocyanates leads to two types of compounds: 3-Aryl-4-aryl(alkyl)sulfonyl-Δ2-1,2,4-oxadiazolin-5-ones and 5-aryl-2-aryl(alkyl)sulfonylimino-Δ4-1,3,4-dioxazoles.Hydrolysis of the o

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