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489432-91-9

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489432-91-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 489432-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,8,9,4,3 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 489432-91:
(8*4)+(7*8)+(6*9)+(5*4)+(4*3)+(3*2)+(2*9)+(1*1)=199
199 % 10 = 9
So 489432-91-9 is a valid CAS Registry Number.

489432-91-9Relevant articles and documents

TBAT-mediated nitrone formation of ω-mesyloxy-O-tert-butyldiphenylsilyloximes: Facile synthesis of cyclic nitrones from hemiacetals

Tamura, Osamu,Toyao, Atsushi,Ishibashi, Hiroyuki

, p. 1344 - 1346 (2007/10/03)

Chiral and cyclic nitrones were synthesized by TBAT-mediated desilylative cyclization of ω-mesyloxy-O-tert-butyl-diphenylsilyloximes, readily prepared from sugar derivatives by a consecutive treatment with O-tert-butyldiphenylsilylhydroxylamine and with m

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