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257949-92-1

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257949-92-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 257949-92-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,9,4 and 9 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 257949-92:
(8*2)+(7*5)+(6*7)+(5*9)+(4*4)+(3*9)+(2*9)+(1*2)=201
201 % 10 = 1
So 257949-92-1 is a valid CAS Registry Number.

257949-92-1Downstream Products

257949-92-1Relevant articles and documents

Stereoselectivity of intramolecular cyclisations of nitrones derived from 3-oxahept-6-enals

Gravestock, Michael B.,Knight, David W.,Lovell, Jennifer S.,Thornton, Steven R.

, p. 3143 - 3155 (2007/10/03)

Intramolecular [l,3]-dipolar cycloadditions of nitrones 33, derived from 3-oxahept-6-enals 7, substituted at either the 4- or 5-position and prepared using a variety of approaches, give good to excellent yields of the cycloadducts 34-37, with good levels

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