151049-89-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 151049-89-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,1,0,4 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 151049-89:
(8*1)+(7*5)+(6*1)+(5*0)+(4*4)+(3*9)+(2*8)+(1*9)=117
117 % 10 = 7
So 151049-89-7 is a valid CAS Registry Number.
151049-89-7Relevant academic research and scientific papers
Synthesis of 3-Substituted-1-methylpyrazoles
Pavlik, James W.,Kurzweil, Edyth M.
, p. 1357 - 1359 (2007/10/02)
Reaction of 3-bromo-1-methylpyrazole 1 with t-butyllithium at -100 deg C followed by quenching of the lithiopyrazole intermediate allows regiospecific introduction of substituents into the 3-position of the 1-methylpyrazole ring.
