130256-92-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130256-92-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,2,5 and 6 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 130256-92:
(8*1)+(7*3)+(6*0)+(5*2)+(4*5)+(3*6)+(2*9)+(1*2)=97
97 % 10 = 7
So 130256-92-7 is a valid CAS Registry Number.
130256-92-7Relevant articles and documents
2H-benzimidazoles: Convenient synthons for tricyclic heterocycles
Cada,Kramer,Neidlein,Suschitzky
, p. 902 - 911 (2007/10/02)
The readily available 5-nitrospiro[2H-benzimidazole-2,1'-cyclohexane] (1) was converted into the carbonitrile 5 and the 4-phenylthio derivative 4. The NO2 or the PhS substituents in 4 could be replaced regiospecifically by reaction with Me
