57186-07-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57186-07-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,1,8 and 6 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 57186-07:
(7*5)+(6*7)+(5*1)+(4*8)+(3*6)+(2*0)+(1*7)=139
139 % 10 = 9
So 57186-07-9 is a valid CAS Registry Number.
57186-07-9Relevant articles and documents
A new redox-denitration reaction of aromatic nitro compounds
Rees, Charles W.,Tsoi, Siu C.
, p. 415 - 416 (2007/10/03)
When 4,4-dimethyl-1-(2-nitrophenyl)pyrazolidin-3-one 9 is heated in pyridine containing pyridine hydrochloride it is transformed into 4,4- dimethyl-1-phenylpyrazolidin-3,5-dione 10 in which the methylene group has been oxidised and the nitro group has dis
