4-Phenylurazole

CAS No.: 15988-11-1

Chemical Name:: 4-Phenylurazole

Synonyms: 4-Phenylurazol;AURORA KA-3647;4-PHENYLURAZOLE;4-phenyl urea yl;Urazole, 4-phenyl-;4-Phenylurazole>4-PHENYLURAZOLE 99.0%;4-Phenylurazole, 98+%;Calcitriol Impurity 5;Bicarbamimide, N-phenyl-

CBNumber:: CB2720962

Molecular Formula:: C8H7N3O2

Molecular Weight:: 177.16

MOL File:: 15988-11-1.mol

MSDS File:: SDS

Modify Date:: 2023/4/27 16:27:43

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4-Phenylurazole 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.	Inert atmosphere,2-8°C
form	powder to crystal
pka	5.43±0.30(Predicted)
color	White to Almost white
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)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H302-H315-H319-H332-H335

Precautionary statements

P261-P280-P305+P351+P338

Safety Statements

22-24/25

WGK Germany

TSCA

Yes

HS Code

29339990

NFPA 704

	0
1		0

4-Phenylurazole price More Price(3)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich(India)	188956	4-Phenylurazole 98%	15988-11-1	25G	₹4968.68	2022-06-14	Buy
TCI Chemicals (India)	P1160	4-Phenylurazole	15988-11-1	5G	₹2200	2022-05-26	Buy
TCI Chemicals (India)	P1160	4-Phenylurazole	15988-11-1	25G	₹4800	2022-05-26	Buy

Product number	Packaging	Price	Buy
188956	25G	₹4968.68	Buy
P1160	5G	₹2200	Buy
P1160	25G	₹4800	Buy

4-Phenylurazole Chemical Properties,Uses,Production

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

General Description

4-Phenylurazole undergoes oxidation in the presence of NO₂-N₂O₄ to yield 4-phenyl-1,2,4-trizoline-3,5-dione. It undergoes acetylation reaction with excess acetyl chloride in N,N-dimethylacetamide solution. It polymerizes in the presence of phosgene, terephthaloyl chloride and epichlorohydrin to yield insoluble polymer. It is precursor to the Diels-Alder trapping agent, 4-phenyl-1,2,4-triazoline-3,5-dione. This urazole was recently demonstrated in the traceless, chemoselective labeling of peptides and proteins through electrochemical tyrosine-click (e-Y-CLICK) chemistry.

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

Phenyl isocyanate Potassium hydroxide solution Semicarbazide Diethyl carbonate 4-PHENYL-1,2,4-TRIAZOLINE-3,5-DIONE

Preparation Products

4-Phenylurazole Suppliers

Global( 179)Suppliers

Supplier	Tel	Country	ProdList	Advantage	Inquiry
SRINIVASA LABS	+91-8247888505 +91-8247888505	Hyderabad, India	76	58	Inquiry
CHEMSWORTH	+91-261-2397244	New Delhi, India	6707	30	Inquiry
A.J Chemicals	91-9810153283	New Delhi, India	6124	58	Inquiry
TCI Chemicals (India) Pvt. Ltd.	1800 425 7889	New Delhi, India	6778	58	Inquiry
OCEAN TRADING CORPORATION	+91(22) 24921669	New Delhi, India	6211	58	Inquiry
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	China	29797	60	Inquiry
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	China	16221	58	Inquiry
Hangzhou FandaChem Co.,Ltd.	008657128800458; +8615858145714	China	9338	55	Inquiry
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	China	32715	60	Inquiry
Zhejiang ZETian Fine Chemicals Co. LTD	+8618957127338	China	2141	58	Inquiry

Supplier	Advantage
SRINIVASA LABS	58
CHEMSWORTH	30
A.J Chemicals	58
TCI Chemicals (India) Pvt. Ltd.	58
OCEAN TRADING CORPORATION	58
Capot Chemical Co.,Ltd.	60
Shanghai Daken Advanced Materials Co.,Ltd	58
Hangzhou FandaChem Co.,Ltd.	55
ATK CHEMICAL COMPANY LIMITED	60
Zhejiang ZETian Fine Chemicals Co. LTD	58

4-Phenylurazole Spectrum

4-Phenylurazole(15988-11-1)MS 4-Phenylurazole(15988-11-1)¹HNMR 4-Phenylurazole(15988-11-1)¹³CNMR 4-Phenylurazole(15988-11-1)IR1 4-Phenylurazole(15988-11-1)IR2 4-Phenylurazole(15988-11-1)Raman

15988-11-1(4-Phenylurazole)Related Search:

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(FORMYLMETHYLENE)TRIPHENYLPHOSPHORANE 2-Phenylphenol PHENYL RESIN Phenylacetone Phenyl isocyanate

Phenylacetic acid URAZOLE Phenylurea

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AURORA KA-3647 4-PHENYLTETRAHYDRO-1,2,4-TRIAZOLE-3,5-DIONE 4-PHENYLURAZOLE 4-PHENYL-1,2,4-TRIAZOLANE-3,5-DIONE 4-PHENYL-1,2,4-TRIAZOLIDINE-3,5-DIONE 1,2,4-Triazolidine-3,5-dione, 4-phenyl- 1,2,4-Triazolidine-3,5-dione,4-phenyl- 2,4-Triazolidine-3,5-dione,4-phenyl-1 4-Phenylurazol 4-triazolidine-3,5-dione,4-phenyl-2 Bicarbamimide, N-phenyl- Urazole, 4-phenyl- 4-Phenyl-1,2,4-triazdidine-3,5-dione 4-Phenylurazole, HPLC 98% 1,2-Dihydro-4-phenyl-4H-1,2,4-triazole-3,5-dione 4-Phenyl-1,2,4-triazole-3,5-diol 4-Phenyl-4H-1,2,4-triazole-3,5-diol 4-Phenyltetrahydro-1H-1,2,4-triazole-3,5-dione 4-phenyl urea yl 4-PHENYLURAZOLE 99.0% 4-Phenylurazole, 98+% 4-PHENYLURAZOLE FOR SYNTHESIS 4-Phenyl-1,2,4-triazolidine-3,5-dione 98% 4-Phenylurazole, 3,5-Dioxo-4-phenyl-1,2,4-triazolidine CHEMICAL - 4-PHENYL URAZOLE Calcitriol Impurity 5 4-Phenylurazole> 15988-11-1 15988-11-0 Building Blocks Heterocyclic Building Blocks Triazoles Building Blocks Chemical Synthesis Heterocyclic Building Blocks Triazoles Naphthyridine,Quinoline