100-28-7 Usage
Chemical Properties
yellow crystalline solid
Uses
4-Nitrophenyl isocyanate is used as pharmaceutical intermediates. 4-Nitrophenyl isocyanate was used in the synthesis of 2-(5-methyl-3,4-diphenyl-1H-pyrrole-2-carbonyl)-N-(4-nitrophenyl)hydrazinecarboxamide.
Safety Profile
A poison by intraperitoneal route.Moderately toxic by ingestion. When heated todecomposition it emits toxic vapors of NOx.
Purification Methods
Distil the isocyanate in a vacuum, and/or recrystallise it from pet ether (b 28-38o), *C6H6/pet ether (m 58o) or CCl4 (m 56-57o). [Beilstein 12 H 725, 12 III 1630.]
Check Digit Verification of cas no
The CAS Registry Mumber 100-28-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,0 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 100-28:
(5*1)+(4*0)+(3*0)+(2*2)+(1*8)=17
17 % 10 = 7
So 100-28-7 is a valid CAS Registry Number.
InChI:InChI=1/C7H4N2O3/c10-5-8-6-1-3-7(4-2-6)9(11)12/h1-4H
