1142-13-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1142-13-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,4 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1142-13:
(6*1)+(5*1)+(4*4)+(3*2)+(2*1)+(1*3)=38
38 % 10 = 8
So 1142-13-8 is a valid CAS Registry Number.
1142-13-8Relevant articles and documents
Clay catalysed facile rearrangement of diazoaminobenzene to p-aminoazobenzene
Pitchumani, K.,Venkatachalapathy, C.,Sivasubramanian, S.
, p. 187 - 189 (2007/10/03)
Rearrangement of diazoaminobenzene in the presence of acidic cation-exchanged K10-montmorillonite gives exclusively p-aminoazobenzene at room temperature within three hours.