210825-08-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 210825-08-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,0,8,2 and 5 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 210825-08:
(8*2)+(7*1)+(6*0)+(5*8)+(4*2)+(3*5)+(2*0)+(1*8)=94
94 % 10 = 4
So 210825-08-4 is a valid CAS Registry Number.
InChI:InChI=1/C15H12N2O2/c1-11-7-8-14(19-11)15-12(10-18)9-17(16-15)13-5-3-2-4-6-13/h2-10H,1H3
210825-08-4Relevant articles and documents
4-Functionalized 3-Heterylpyrazoles. I. 4-Formyl-3-heterylpyrazoles
Bratenko,Chernyuk,Vovk
, p. 1293 - 1295 (2007/10/03)
Vilsmeier-Haak reactions of 2-furyl, 2-thienyl, and 2-oxochromen-3-yl methyl ketones result in formation of the corresponding 4-formyl-3-heterylpyrazoles in high yield.