166756-37-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 166756-37-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,7,5 and 6 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 166756-37:
(8*1)+(7*6)+(6*6)+(5*7)+(4*5)+(3*6)+(2*3)+(1*7)=172
172 % 10 = 2
So 166756-37-2 is a valid CAS Registry Number.
166756-37-2Relevant articles and documents
5-Methyl-1-phenylpyrroloborepin: a Polarized Aromatic Molecule
Sugihara, Yoshikazu,Miyatake, Ryuta,Murata, Ichiro,Imamura, Akira
, p. 1249 - 1250 (1995)
Spectroscopic data together with molecular orbital calculations show that 5-methyl-1-phenylpyrroloborepin is a polar aromatic system, whose stability confirms our guide for construction of stable heteroaromatic compounds.