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152449-34-8

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152449-34-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 152449-34-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,2,4,4 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 152449-34:
(8*1)+(7*5)+(6*2)+(5*4)+(4*4)+(3*9)+(2*3)+(1*4)=128
128 % 10 = 8
So 152449-34-8 is a valid CAS Registry Number.

152449-34-8Relevant articles and documents

Five-membered 2,3-dioxo heterocycles: L. Synthesis and thermolysis of 3-aroyl- and 3-hetaroyl-5-phenyl-1,2,4,5-tetrahydropyrrolo[1,2-a]quinoxalin-1,2, 4-triones

Bozdyreva,Smirnova,Maslivets

, p. 1081 - 1088 (2007/10/03)

(Z)-3-Phenacylidene- and (Z)-3-hetaroylmethylidene-1-phenyl-1,2,3,4- tetrahydroquinoxalin-2-ones react with oxalyl chloride to give 3-acyl-5-phenyl-1,2,4,5-tetrahydropyrrolo[1,2-a]quinoxaline-1,2,4-triones. Thermolysis of the latter generates acyl(3-oxo-4

FIVE-MEMBERED 2,3-DIOXOHETEROCYCLES XXXI. REACTION OF 1-ARYL-4-AROYL-5-METHOXYCARBONYL-2,3-DIHYDRO-2,3-PYRROLEDIONES WITH o-AMINOPHENOL AND N-PHENYL-o-PHENYLENEDIAMINE

Maslivets, A. N.,Smirnova, L. I.,Andreichikov, Yu. S.

, p. 1716 - 1722 (2007/10/02)

1-Aryl-4-aroyl-5-methoxycarbonyl-2,3-dihydro-2,3-pyrrolediones react with o-aminophenol and N-phenyl-o-phenylenediamine with the formation of 1-aryl-4-aroyl-5-methoxycarbonyl-3-hydroxy-5-o-hydroxyphenylamino- and 5-o-phenylaminophenylamino-2,5-dihydro-2-p

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