129308-99-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129308-99-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,3,0 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 129308-99:
(8*1)+(7*2)+(6*9)+(5*3)+(4*0)+(3*8)+(2*9)+(1*9)=142
142 % 10 = 2
So 129308-99-2 is a valid CAS Registry Number.
129308-99-2Relevant academic research and scientific papers
CHLORINATION OF 1,5-DIMETHYLPYRAZOLE
Perevalov, V. P.,Manaev, Yu. A.,Bezborodov, B. V.,Stepanov, B. I.
, p. 301 - 303 (2007/10/02)
The chlorination of 1,5-dimethylpyrazole by gaseous chlorine in acetic acid in the presence of sodium acetate affords 1-methyl-3,4-dichloro-5-(dichloromethyl)pyrazole, which is subsequently converted to the 5-(trichloromethyl) derivative.
