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159885-65-1

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159885-65-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 159885-65-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,8,8 and 5 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 159885-65:
(8*1)+(7*5)+(6*9)+(5*8)+(4*8)+(3*5)+(2*6)+(1*5)=201
201 % 10 = 1
So 159885-65-1 is a valid CAS Registry Number.

159885-65-1Relevant articles and documents

Regioselective cyclocondensation of ethyl 2-ethoxymethylidene-3-oxo-3- polyfluoroalkylpropionates with thiazolylhydrazines

Pryadeina,Denisova,Burgart,Saloutin

experimental part, p. 1811 - 1815 (2009/09/06)

Ethyl 2-ethoxymethylidene-3-oxo-3-polyfluoroalkylpropionates reacted in a regioselective fashion with thiazolylhydrazines to give the corresponding ethyl 1-thiazolyl-5-fluoroalkyl-1H-pyrazole-4-carboxylates. The product structure was determined on the basis of NMR and X-ray diffraction data.

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