Pyrazine
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Pyrazine 속성
- 녹는점
- 50-56 °C (lit.)
- 끓는 점
- 115-116 °C (lit.)
- 밀도
- 1.031 g/mL at 25 °C (lit.)
- 굴절률
- 1.5235
- FEMA
- 4015 | PYRAZINE
- 인화점
- 132 °F
- 저장 조건
- Store below +30°C.
- 용해도
- 쉽게 용해됨
- 산도 계수 (pKa)
- 0.65(at 27℃)
- 물리적 상태
- 크리스탈
- 색상
- 하얀색
- Specific Gravity
- 1.031
- 냄새
- 프로필렌 글리콜 중 0.10%. 구운 헤이즐넛 보리처럼 매운 옥수수
- ?? ??
- 견과류
- 수용성
- 녹는
- 감도
- Hygroscopic
- JECFA Number
- 951
- Merck
- 14,7957
- BRN
- 103905
- Dielectric constant
- 2.7999999999999998
- 안정성
- 안정적인. 가연성이 높습니다. 산, 산화제와 호환되지 않습니다.
- LogP
- -0.26
- CAS 데이터베이스
- 290-37-9(CAS DataBase Reference)
- NIST
- Pyrazine(290-37-9)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | Xi,F | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 36/37/38-11 | ||
| 안전지침서 | 26-36-16 | ||
| 유엔번호(UN No.) | UN 1325 4.1/PG 2 | ||
| WGK 독일 | 3 | ||
| RTECS 번호 | UQ2015000 | ||
| TSCA | T | ||
| 위험 등급 | 4.1 | ||
| 포장분류 | III | ||
| HS 번호 | 29339990 |
Pyrazine C화학적 특성, 용도, 생산
화학적 성질
Pyrazine has a strong pyridine-like odor. Some reports compare the taste of pyrazine to cooked spinach or rancid peanuts출처
Pyrazine has been detected in several food products including papayas, asparagus, peanuts, popcorn, soybeans, corn, French fries, bread, cheese, milk, eggs (boiled), chicken (fried), beef (cooked), shrimp, clams, beer, sherry, malt, coffee and tea (green).용도
Pyrazine is used as a flavoring agent. It serves as a component of some herbs in traditional Chinese medicine. It is employed as pharmaceutical intermediates, perfume intermediates and involved in the preparation of other chemicals. In addition to this, it is used in the production of pyrazine 1-oxide.제조 방법
Prepared by cyclization of α-amino ketones, which were produced by the reduction of isonitroso ketones to yield the dihydropyrazines, which are dehydrogenated with mercury(I) oxide or copper(II) sulfate or sometimes with atmospheric oxygen.정의
pyrazine: An unsaturated heterocycliccompound having two nitrogenatoms in a six-membered ring,C4H4N2; r.d. 1.03; m.p. 52°C; b.p.115°C. Pyrazine is a symmetric diazine.일반 설명
Pyrazine is a 1,4-diazine and an electron-deficient N-heteroarene found in several natural products, APIs, agrochemicals, and functional materials.Purification Methods
Distil pyrazine in steam and crystallise it from water. Purify also by zone melting. [Beilstein 23 H 91, 23 II 80, 23 III/IV 899, 23/5 V 351.]Pyrazine 준비 용품 및 원자재
원자재
Pyrazine, 3-ethenyl-2,5-dimethyl-
2-ethyl-6-methylpyrazine
5-METHYL-PYRAZINE-2-CARBOXAMIDE
2,3-Dimethyl-5-ethylpyrazine
발레리신
2-Pyrazinylmethanol
Pyrazine-2-carbaldehyde
피라진아마이드
2,6-Dimethylpyrazine
2,3-디메틸피라진
메틸피라진
2,5-디메틸피라진
준비 용품
Pyrazine 공급 업체
글로벌( 385)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Henan Bao Enluo International TradeCo.，LTD | +86-17331933971 +86-17331933971 |
deasea125996@gmail.com | China | 2472 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 |
info@fdachem.com | China | 20287 | 58 |
| JINING XINHE CHEMICAL CO., LTD | +8615318402391 |
sales@xinhepharma.com | China | 809 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 |
sales@capot.com | China | 29791 | 60 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21634 | 55 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +8618949832763 |
info@tnjchem.com | China | 2986 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 |
sales@coreychem.com | China | 29884 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28172 | 58 |
| Jinan Finer Chemical Co., Ltd | +86-531-88989536 +86-15508631887 |
sales@finerchem.com | China | 2964 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-86-5926051114 +8618959220845 |
sales@amoychem.com | China | 6383 | 58 |