199590-71-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199590-71-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,5,9 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 199590-71:
(8*1)+(7*9)+(6*9)+(5*5)+(4*9)+(3*0)+(2*7)+(1*1)=201
201 % 10 = 1
So 199590-71-1 is a valid CAS Registry Number.
199590-71-1Relevant articles and documents
Chemoselective O-methylation of phenols under non-aqueous condition
Basak, Anindita,Nayak, Mrinal K.,Chakraborti, Asit K.
, p. 4883 - 4886 (1998)
Chemoselective O-methylation of substituted phenols takes place in dry. tetrahydrofuran (THF) in the presence of LiOH.H2O and dimethylsulfate (DMS). Quantitative methyl transfer from DMS preserves the atom economy.