33131-59-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33131-59-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,1,3 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 33131-59:
(7*3)+(6*3)+(5*1)+(4*3)+(3*1)+(2*5)+(1*9)=78
78 % 10 = 8
So 33131-59-8 is a valid CAS Registry Number.
33131-59-8Relevant articles and documents
ONE POT SYNTHESIS OF 4-METHYL 2(5H)-FURANONES
Wakharkar, R. D.,Deshpande, V. H.,Landge, A. B.,Upadhye, B. K.
, p. 1513 - 1518 (2007/10/02)
A series of 3-aryl, 4-methyl 2(5H)-furanones variably substituted in the phenyl ring were conveniently prepared in one pot in good yields from the corresponding phenylacetic acid derivatives and chloroacetone.