357156-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 357156-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,5,7,1,5 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 357156-71:
(8*3)+(7*5)+(6*7)+(5*1)+(4*5)+(3*6)+(2*7)+(1*1)=159
159 % 10 = 9
So 357156-71-9 is a valid CAS Registry Number.
357156-71-9Relevant articles and documents
A new protocol for synthesis of 3-hydroxymethyl-4-methoxy-2H-pyrone derivatives
Hagiwara, Hisahiro,Kobayashi, Katsuhiro,Hoshi, Takashi,Suzuki, Toshio,Ando, Masayoshi
, p. 5039 - 5043 (2007/10/03)
The title compounds have been prepared by treatment of 4-methoxy-3-phenylsulfinylmethyl-2H-pyrone derivatives with trifluoroacetic anhydride, followed by basic work-up.
