190-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 190-16-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,9 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 190-16:
(5*1)+(4*9)+(3*0)+(2*1)+(1*6)=49
49 % 10 = 9
So 190-16-9 is a valid CAS Registry Number.
190-16-9Relevant articles and documents
Synthesis of Benzophenalenothiophene and Benzophenalenothiophene
Tominaga, Yoshinori,Castle, Raymond N.
, p. 1125 - 1130 (2007/10/02)
Two pentacyclic thiophenes, benzophenalenothiophene (1) and benzophenalenothiophene (2) were synthesized via the corresponding 3-methylphenanthrothiophene (7) and 1-methylanthrathiphene (19).