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159551-33-4

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159551-33-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 159551-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,5,5 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 159551-33:
(8*1)+(7*5)+(6*9)+(5*5)+(4*5)+(3*1)+(2*3)+(1*3)=154
154 % 10 = 4
So 159551-33-4 is a valid CAS Registry Number.

159551-33-4Relevant articles and documents

LIQUID-PHASE HYDROFORMYLATION OF 2,3- AND 2,5-DIHYDROFURANS

Vol'f, E. Yu.,Solov'eva, T. Yu.,Vartanyan, M. M.,Brezhnev, L. Yu.,Lapidus, A. L.

, p. 2356 - 2358 (2007/10/02)

The synthesis of 3-formyl derivatives of the tetrahydrofuran series was carried out by hydroformylation of 2,3-dihydrofuran and 2,5-dimethoxy-2,5-dihydrofuran in the presence of HRh(CO)(PPh3)3.The influence of the temperature, pressure, catalyst concentration, and the nature of the solvent on the conversion of dihydrofuran, the composition of aldehydes obtained and the selectivity of their formation was investigated.

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