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140669-25-6

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140669-25-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140669-25-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,6,6 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 140669-25:
(8*1)+(7*4)+(6*0)+(5*6)+(4*6)+(3*9)+(2*2)+(1*5)=126
126 % 10 = 6
So 140669-25-6 is a valid CAS Registry Number.

140669-25-6Relevant articles and documents

ORGANOPHOSPHORUS COMPOUNDS PREPARED FROM SUBSTITUTED 2-CHLOROCYCLOBUTANONES

Grishina, L. N.,Gaifullina, O. E.,Dubinina, N. P.,Nuretdinov, I. A.

, p. 2380 - 2382 (2007/10/02)

Carboxylic acids react with 7,7-dichlorobicyclohept-2-en-6-one in presence of triethylamine with the formation of cyclic substituted monochloro ketones, which in reaction with trialkyl phosphites give, as result of Perkow rearrangement, previously undescribed 5-(acyloxy)bicyclohepta-2,6-dien-6-yl dialkyl phosphates.

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