89524-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89524-20-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,5,2 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 89524-20:
(7*8)+(6*9)+(5*5)+(4*2)+(3*4)+(2*2)+(1*0)=159
159 % 10 = 9
So 89524-20-9 is a valid CAS Registry Number.
89524-20-9Relevant articles and documents
A NOVEL ROUTE FROM A CARBOXYLIC ACID TO A CARBALDEHYDE USING METHYLTHIOMETHYL p-TOLYL SULFONE
Ogura, Katsuyuki,Yahata, Nobuhiro,Takahashi, Kazumasa,Iida, Hirotada
, p. 5761 - 5762 (2007/10/02)
A new conversion of a carboxylic ester to a carbaldehyde involing formation and dissociation of a C-C bond at the acyl carbon was accomplished by the use of methylthiomethyl p-tolyl sulfone (1).