125091-44-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 125091-44-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,0,9 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 125091-44:
(8*1)+(7*2)+(6*5)+(5*0)+(4*9)+(3*1)+(2*4)+(1*4)=103
103 % 10 = 3
So 125091-44-3 is a valid CAS Registry Number.
125091-44-3Relevant articles and documents
Synthesis of 1,5- and 1,7-dichloro-9H-thioxanthen-9-ones
Okabayashi,Murakami,Sekiya
, p. 635 - 637 (2007/10/02)
1,5-Dichloro-9H-thioxanthen-9-one was prepared by cyclization of 2-chloro-6-[(2-chlorophenyl)thio]-benzoic acid obtained from 2-chloro-6-iodobenzoic (9) acid and 2-chlorobenzenethiol. Similarly, 1,7-dichloro-9H-thioxanthen-9-one (6) was prepared from 9 vi