4-Phenylurazole

Basic information Safety Related Supplier

4-Phenylurazole Basic information

Product Name:
4-Phenylurazole
CAS:
15988-11-1
MF:
C8H7N3O2
MW:
177.16
EINECS:
240-127-0
Mol File:
15988-11-1.mol
More
Less

4-Phenylurazole Chemical Properties

Melting point:
207-209 °C(lit.)
Boiling point:
309.07°C (rough estimate)
Density 
1.3393 (rough estimate)
refractive index 
1.6500 (estimate)
storage temp. 
Store below +30°C.
pka
5.43±0.30(Predicted)
BRN 
163361
InChIKey
GOSUFRDROXZXLN-UHFFFAOYSA-N
CAS DataBase Reference
15988-11-1(CAS DataBase Reference)
NIST Chemistry Reference
4-Phenylurazole(15988-11-1)
EPA Substance Registry System
1,2,4-Triazolidine-3,5-dione, 4-phenyl- (15988-11-1)
More
Less

Safety Information

Safety Statements 
22-24/25
WGK Germany 
3
TSCA 
Yes
HS Code 
29339990

MSDS

More
Less

4-Phenylurazole Usage And Synthesis

Description

4-phenylurazole is a kind of laboratory chemicals used for the manufacturing of some substances. It can be used as the precursor to the Diels-Alder trapping agent, 4-phenyl-1, 2, 4-triazoline-3, 5-Dione. Its derivative, azo dyes, has wide applications in dyes industry. In the presence of phosgene, terephthaloyl chloride and epichlorohydrin, it can be polymerized to yield insoluble polymer.

Chemical Properties

white to light beige cryst. powder or granules

Uses

Precursor to the Diels-Alder trapping agent, 4-phenyl-1,2,4-triazoline-3,5-dione.1,2,3

Purification Methods

Crystallise 4-phenylurazole from water or 95% EtOH. Dissolve 35g in 80mL of boiling 95% EtOH and on cooling 90-95% is recovered with m 209-210o. It has IR with 1685 and 3120cm-1. [Cookson et al. Org max Synth 51 121 1971, Beilstein 26 I 64, 26 III/IV 540.]

References

http://www.sigmaaldrich.com/catalog/product/aldrich/188956?lang=en&region=US&gclid=EAIaIQobChMI6r7k0eu71gIV1IZoCh0nwgLjEAAYASAAEgI0tvD_BwE
http://nopr.niscair.res.in/handle/123456789/21799

4-Phenylurazole Preparation Products And Raw materials

Raw materials

More
Less

4-PhenylurazoleSupplierMore

Chengdu syns Pharmaceutical Co., Ltd. Gold
Tel:
028-89481917
Email:
sales@syns.org
Beijing FYF Chemicals Co., Ltd Gold
Tel:
010-57903446-
Email:
1460285141@qq.com;
Capot Chemical Co.,Ltd. Gold
Tel:
+86-571-85586718
Email:
sales@capotchem.com
Shanghai Pin Research Chemical Co., Ltd. Gold
Tel:
15900489257
Email:
271793832@qq.com
J & K SCIENTIFIC LTD.
Tel:
010-82848833- ;010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
Basic information Safety Related Supplier