91-71-4 Usage
Safety Profile
Poison by
intraperitoneal and intravenous routes.
Moderately toxic by ingestion. When heated
to decomposition it emits very toxic fumes
of As, SOx, and NOx. See also
MERCAPTANS and ARSENIC
COMPOUNDS.
Check Digit Verification of cas no
The CAS Registry Mumber 91-71-4 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91-71:
(4*9)+(3*1)+(2*7)+(1*1)=54
54 % 10 = 4
So 91-71-4 is a valid CAS Registry Number.