4-페닐우라졸

한글명:4-페닐우라졸

카스 번호15988-11-1

상품명:4-Phenylurazole

CBNumberCB2720962

분자식C8H7N3O2

포뮬러 무게177.16

MOL 파일15988-11-1.mol

동의어(한글)

4-페닐우라졸

화학적 성질

녹는점	207-209 °C (lit.)
끓는 점	309.07°C (rough estimate)
밀도	1.3393 (rough estimate)
굴절률	1.6500 (estimate)
저장 조건	Inert atmosphere,2-8°C
물리적 상태	powder to crystal
산도 계수 (pKa)	5.43±0.30(Predicted)
색상	흰색에서 거의 흰색
BRN	163361
InChIKey	GOSUFRDROXZXLN-UHFFFAOYSA-N
CAS 데이터베이스	15988-11-1(CAS DataBase Reference)
NIST	4-Phenylurazole(15988-11-1)
EPA	1,2,4-Triazolidine-3,5-dione, 4-phenyl- (15988-11-1)

위험 및 안전 성명

안전지침서

22-24/25

WGK 독일

TSCA

Yes

HS 번호

29339990

NFPA 704:

	0
1		0

그림문자(GHS)

4-페닐우라졸 MSDS

4-페닐우라졸 화학적 특성, 용도, 생산

개요
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.
화학적 성질
white to light beige cryst. powder or granules
용도
Precursor to the Diels-Alder trapping agent, 4-phenyl-1,2,4-triazoline-3,5-dione.1,2,3
일반 설명
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.]
참고 문헌
http://www.sigmaaldrich.com/catalog/product/aldrich/188956?lang=en&region=US&gclid=EAIaIQobChMI6r7k0eu71gIV1IZoCh0nwgLjEAAYASAAEgI0tvD_BwE
http://nopr.niscair.res.in/handle/123456789/21799

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