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25173-17-5

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25173-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25173-17-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,1,7 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 25173-17:
(7*2)+(6*5)+(5*1)+(4*7)+(3*3)+(2*1)+(1*7)=95
95 % 10 = 5
So 25173-17-5 is a valid CAS Registry Number.

25173-17-5Relevant articles and documents

Lipase-catalyzed regioselective protection of hydroxyl groups in aromatic dihydroxyaldehydes and ketones

Nicolosi,Piattelli,Sanfilippo

, p. 3143 - 3148 (1993)

Pseudomonas cepacia lipase catalyzes the acetylation in organic solvent of dihydroxyaldehydes and ketones using vinyl acetate as acyl donor. The method is completely regioselective and allows to obtain partially acetylated compounds different from those obtained by enzymic hydrolysis of polyacetoxy arylaldehydes and ketones.

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