121287-72-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121287-72-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,2,8 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 121287-72:
(8*1)+(7*2)+(6*1)+(5*2)+(4*8)+(3*7)+(2*7)+(1*2)=107
107 % 10 = 7
So 121287-72-7 is a valid CAS Registry Number.
121287-72-7Relevant articles and documents
Zeolites. Efficient and eco-friendly catalysts for the synthesis of benzimidazoles
Heravi, Majid M.,Tajbakhsh, Mahmood,Ahmadi, Amir N.,Mohajerani, Bagher
, p. 175 - 179 (2007/10/03)
A superior method of synthesis of 2-substituted benzimidazoles by means of the heterogeneous catalysis of synthetic and natural zeolites in the reaction of 1,2-diaminobenzene with acid chlorides is described. Springer-Verlag 2005.
