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171003-67-1

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171003-67-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 171003-67-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,0,0 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 171003-67:
(8*1)+(7*7)+(6*1)+(5*0)+(4*0)+(3*3)+(2*6)+(1*7)=91
91 % 10 = 1
So 171003-67-1 is a valid CAS Registry Number.

171003-67-1Upstream product

171003-67-1Downstream Products

171003-67-1Relevant articles and documents

Diels-alder reactions of a styrene-isocyanate: Unexpected formation of a pyridinone and uracil

Gfesser, Gregory A.,Whittern, David,Cowart, Marlon D.,Faghih, Ramin

, p. 1199 - 1203 (2008/12/20)

During the preparation of 6-bromoisoquinolinone, a novel and unexpected reaction occurred to form a pyridinone and a pyrimidine-2,4-dione. We propose a [4+2] Diels-Alder dimerization of an intermediate styrene-isocyanate to explain the observed products.

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