635288-51-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 635288-51-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,5,2,8 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 635288-51:
(8*6)+(7*3)+(6*5)+(5*2)+(4*8)+(3*8)+(2*5)+(1*1)=176
176 % 10 = 6
So 635288-51-6 is a valid CAS Registry Number.
635288-51-6Relevant articles and documents
Synthesis of some pyrano[2,3-c]pyrazoles
Pavlik, James W.,Ervithayasuporn, Vuthichai,Tantayanon, Supawan
, p. 710 - 714 (2011/07/31)
Synthetic methods have been developed to prepare pyrano[2,3-c]pyrazoles with various substituents at ring positions 1, 3, and 6. The 1H- and 13C-NMR properties of these products and their precursors are presented and discussed.