152298-09-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 152298-09-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,2,2,9 and 8 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 152298-09:
(8*1)+(7*5)+(6*2)+(5*2)+(4*9)+(3*8)+(2*0)+(1*9)=134
134 % 10 = 4
So 152298-09-4 is a valid CAS Registry Number.
152298-09-4Relevant articles and documents
Synthesis and study of 2-(2-thienyl)benzazole type fluorophores
Kalai, Tamas,Jeko, Jozsef,Osz, Erzsebet,Hideg, Kalman
, p. 1433 - 1442 (2003)
Reaction of 2-(mercaptomethyl)benzazoles 2a-c or isothiouronium salt 4 with acetyleneketone 5 or β-halogeno-α,β-unsaturated aldehyde 7 gives highly fluorescent heterocycles 6a-c or 8a-d. The fluorescence properties of these compounds and their aromatised