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173199-88-7

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173199-88-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 173199-88-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,1,9 and 9 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 173199-88:
(8*1)+(7*7)+(6*3)+(5*1)+(4*9)+(3*9)+(2*8)+(1*8)=167
167 % 10 = 7
So 173199-88-7 is a valid CAS Registry Number.

173199-88-7Relevant articles and documents

Intramolecular Diels-Alder Reactions of 2(1H)-Pyrazinones: Synthesis of New Furo/Pyrano-pyridinones and -pyridines

Buysens, Kris J.,Vandenberghe, Didier M.,Toppet, Suzanne M.,Hoornaert, Georges J.

, p. 12463 - 12478 (2007/10/02)

2(1H)-Pyrazinones 2-5 with in 3-position either a 3- or 4-alkynyloxy side chain and 2(1H)-pyrazinones 9-10 carrying the corresponding 2- or 3-alkynyloxy(m)ethyl substituent are shown to undergo intramolecular Diels-Alder reaction.The formation of either f

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