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129957-03-5

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129957-03-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129957-03-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,5 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 129957-03:
(8*1)+(7*2)+(6*9)+(5*9)+(4*5)+(3*7)+(2*0)+(1*3)=165
165 % 10 = 5
So 129957-03-5 is a valid CAS Registry Number.

129957-03-5Downstream Products

129957-03-5Relevant articles and documents

ANCHIMERICALLY ASSISTED LEWIS ACID CLEAVAGE OF TETRAHYDROFURANS TO FURNISH 1,4-DIOLS

Harwood, Laurence M.,Jackson, Brian,Prout, Keith,Witt, Fiona J.

, p. 1885 - 1888 (2007/10/02)

Treatment of 3-aroyloxy- and 2-(aroyloxymethyl)tetrahydrofurans with TiCl4 results in cleavage of the heterocyclic ring with intervention by the appropriately situated ester group to form intermediates which, on work-up and hydrolysis, furnish 1,4-diols.

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