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89157-50-6

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89157-50-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89157-50-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,5 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 89157-50:
(7*8)+(6*9)+(5*1)+(4*5)+(3*7)+(2*5)+(1*0)=166
166 % 10 = 6
So 89157-50-6 is a valid CAS Registry Number.

89157-50-6Relevant articles and documents

STUDIES ON DEHYDRO-D-arabino-ASCORBIC ACID 2-ARYLHYDRAZONE 3-OXIMES: CONVERSION INTO SUBSTITUTED TRIAZOLES AND ISOXAZOLINES

Sekily, Mohamed Ali el,Mancy, Sohila

, p. 97 - 114 (2007/10/02)

D-erythro-2,3-Hexodiulosono-1,4-lactone 2-arylhydrazones (2) were prepared by condensation of dehydro-D-arabino-ascorbic acid with the desired arylhydrazine.Reaction of 2 with hydroxylamine gave the 2-arylhydrazone 3-oximes (3).On boiling with acetic anhy

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