1-메틸이미다졸

1-메틸이미다졸
1-메틸이미다졸 구조식 이미지
카스 번호:
616-47-7
한글명:
1-메틸이미다졸
동의어(한글):
1-메틸이미다졸;메틸이미다졸;메틸이미다졸.1H-이미다졸,1-메틸-;1-메틸이미다졸(1-METHYLIMIDAZOLE)
상품명:
1-Methylimidazole
동의어(영문):
N-METHYLIMIDAZOLE;1-methyl-1h-imidazole;MIM;MeIm;methyl imidazole;1H-Imidazole, 1-methyl-;N-methylimidazole (1-methylimidazole);1-methylmidazole;N-methyl midazole;N-methyl glyoxaline
CBNumber:
CB1316726
분자식:
C4H6N2
포뮬러 무게:
82.1
MOL 파일:
616-47-7.mol
MSDS 파일:
SDS

1-메틸이미다졸 속성

녹는점
−60 °C(lit.)
끓는 점
198 °C(lit.)
밀도
1.03 g/mL at 25 °C(lit.)
증기압
0.4 mm Hg ( 20 °C)
굴절률
n20/D 1.495(lit.)
인화점
198 °F
저장 조건
Store below +30°C.
용해도
클로로포름(약간 용해됨), 메탄올(약간 용해됨)
물리적 상태
액체
산도 계수 (pKa)
6.95(at 25℃)
Specific Gravity
1.031
색상
무색~황색으로 투명함
수소이온지수(pH)
9.5-10.5 (50g/l, H2O, 20℃)
pH 범위
9.5 - 11.5 at 100 g/l at 20 °C
폭발한계
2.7-15.7%(V)
수용성
물과 섞일 수 있습니다.
감도
Hygroscopic
BRN
105197
안정성
안정적이지만 습기에 민감합니다. 산, 산무수물, 강산화제, 습기, 이산화탄소, 산염화물과 혼합되지 않습니다.
InChIKey
MCTWTZJPVLRJOU-UHFFFAOYSA-N
LogP
-0.19 at 25℃
CAS 데이터베이스
616-47-7(CAS DataBase Reference)
NIST
1H-Imidazole, 1-methyl-(616-47-7)
EPA
1H-Imidazole, 1-methyl- (616-47-7)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 C,Xn,F,T
위험 카페고리 넘버 21/22-34-19-11-20/21/22-52/53-24-22-40-37-21
안전지침서 26-36-45-1/2-36/37/39-16-33-29-61
유엔번호(UN No.) UN 3267 8/PG 2
WGK 독일 1
RTECS 번호 NI7000000
F 고인화성물질 3-10
자연 발화 온도 977 °F
TSCA Yes
위험 등급 8
포장분류 III
HS 번호 29332990
독성 LD50 orally in Rabbit: 1144 mg/kg LD50 dermal Rabbit > 400 - < 640 mg/kg
기존화학 물질 KE-24298
그림문자(GHS): GHS hazard pictogramsGHS hazard pictograms
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H302 삼키면 유해함 급성 독성 물질 - 경구 구분 4 경고 GHS hazard pictograms P264, P270, P301+P312, P330, P501
H311 피부와 접촉하면 유독함 급성 독성 물질 - 경피 구분 3 위험 GHS hazard pictograms P280, P302+P352, P312, P322, P361,P363, P405, P501
H314 피부에 심한 화상과 눈에 손상을 일으킴 피부부식성 또는 자극성물질 구분 1A, B, C 위험 GHS hazard pictograms P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
예방조치문구:
P270 이 제품을 사용할 때에는 먹거나, 마시거나 흡연하지 마시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P301+P312 삼켜서 불편함을 느끼면 의료기관(의사)의 진찰을 받으시오.
P301+P330+P331 삼켰다면 입을 씻어내시오. 토하게 하려 하지 마시오.
P303+P361+P353 피부(또는 머리카락)에 묻으면 오염된 모든 의복은 벗거나 제거하시오 피부를 물로 씻으시오/샤워하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
NFPA 704
2
3 1

1-메틸이미다졸 MSDS


1-Methyl-1H-imidazole

1-메틸이미다졸 C화학적 특성, 용도, 생산

화학적 성질

1-Methylimidazole or N-methylimidazole is an aromatic heterocyclic organic compound with the formula CH3C3H3N2. It is a colorless to yellow liquid, with an amine-like odor. It is miscible with water. N-methylimidazole is an important raw material for the synthesis of pharmaceutical intermediates, used in the preparation of losartan, nizofenone, 1-Methyl-1H-imidazole-5-carbonyl chloride hydrochloride and naphazoline hydrochloride, etc. It is also used as a specialty solvent, a base, and as a precursor to some ionic liquids.

용도

1-Methylimidazole is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate. It is actively involved in removing acid during the production of diethoxyphenylphosphine. It is used as an intermediate in organic synthesis.

용도

1-Methylimidazole is an aprotic solvent. It is a derivative of imidazole used in the production of pharmaceuticals, pesticides, ion exchange resins, dye intermediates, textile auxiliaries, photographic chemicals, and corrosion inhibitors. It can also be used as a catalyst for the manufacture of polyurethane and a curing agent for epoxy resins. For example, when 1-methylimidazole is added to an aqueous diethylenetriamine (DETA) solution, high CO2 loading can be achieved through phase separation of the absorbent during CO2 absorption[1].

제조 방법

1-Methylimidazole is prepared mainly by two routes industrially. The main one is acid-catalysed methylation of imidazole by methanol. The second method involves the Radziszewski reaction from glyoxal, formaldehyde, and a mixture of ammonia and methylamine.
(CHO)2 + CH2O + CH3NH2 + NH3 → H2C2N(NCH3)CH + 3 H2O
The compound can be synthesized on a laboratory scale by methylation of imidazole at the pyridine-like nitrogen and subsequent deprotonation. Similarly, 1-methylimidazole may be synthesized by first deprotonating imidazole to form a sodium salt followed by methylation.
H2C2N(NH)CH + CH3I → [H2C2(NH)(NCH3)CH]I
[H2C2(NH)(NCH3)CH]I + NaOH → H2C2N(NCH3)CH + H2O + NaI

정의

ChEBI: 1-methyl-1H-imidazole is a 1H-imidazole having a methyl substituent at the N-1 position. It is a metabolite of 1-methyl-2-thioimidazole (methimazole). It inhibits bone resorption.

일반 설명

This product has been enhanced for catalysis. 1-Methylimidazole is a derivative of imidazole that is utilized in the manufacture of such classes of items as pharmaceuticals, pesticides, ion-exchange resins, dye intermediates, textile auxiliaries, photographic chemicals, and corrosion inhibitors. It is also used as a catalyst for manufacturing polyurethanes and a curing agent for epoxy resins.

Purification Methods

Dry it with sodium metal and then distil it. Store it at 0o under dry argon. The picrate has m 159.5-160.5o (from H2O). [Beilstein 23 III/IV 568.]

1-메틸이미다졸 준비 용품 및 원자재

원자재

준비 용품


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