139503-84-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139503-84-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,0 and 3 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 139503-84:
(8*1)+(7*3)+(6*9)+(5*5)+(4*0)+(3*3)+(2*8)+(1*4)=137
137 % 10 = 7
So 139503-84-7 is a valid CAS Registry Number.
139503-84-7Relevant academic research and scientific papers
A NEW -SIGMATROPIC DIENOLATE REARRANGEMENT
Magedov, I. V.,Smushkevich, Yu. I.
, p. 1555 - 1557 (2007/10/02)
The -sigmatropic rearrangement of N,N'-dimethyl-N-(1-naphthylacetyl)-N'-(phenylacetyl)hydrazine was realized by the action of lithiohexamethyldisilazane in THF at 66 deg C.
