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129157-97-7

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129157-97-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129157-97-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,1,5 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 129157-97:
(8*1)+(7*2)+(6*9)+(5*1)+(4*5)+(3*7)+(2*9)+(1*7)=147
147 % 10 = 7
So 129157-97-7 is a valid CAS Registry Number.

129157-97-7Downstream Products

129157-97-7Relevant articles and documents

PHOSPHORUS PENTOXIDE IN ORGANIC SYNTHESIS XXXX. SYNTHESIS OF 3-ARYL-3,7-DIHYDRO-4H-PYRROLOPYRIMIDIN-4-ONES

Hilmy, Khalid Mohamed Hassan,Mogensen, Jorgen,Jorgensen, Anker,Pedersen, Erik B.

, p. 367 - 372 (2007/10/02)

Pyrrolopyrimidin-4(3H)-ones (2a-j) were prepared in 18-51percent yields by heating 2-acetylamino-3-pyrrolocarbonitriles (1) with a mixture of phosphorus pentoxide, N,N-dimethylcyclohexylamine hydrochloride, water, and an appropriate arylamine hydrochloride at 180 deg C.

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