81-92-5 Usage
Safety Profile
A poison by subcutaneous route. When heated to decomposition it emits acrid smoke and irritating vapors.
Purification Methods
Crystallise it from aqueous EtOH. [Beilstein 6 H 1146, 6 II 1110, 6 IV 7623.]
Check Digit Verification of cas no
The CAS Registry Mumber 81-92-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81-92:
(4*8)+(3*1)+(2*9)+(1*2)=55
55 % 10 = 5
So 81-92-5 is a valid CAS Registry Number.
InChI:InChI=1/C20H18O3/c21-13-16-3-1-2-4-19(16)20(14-5-9-17(22)10-6-14)15-7-11-18(23)12-8-15/h1-12,20-23H,13H2