3-Methyl-2-nitrobenzoic acid

3-Methyl-2-nitrobenzoic acid 구조식 이미지
카스 번호:
5437-38-7
상품명:
3-Methyl-2-nitrobenzoic acid
동의어(영문):
2-NITRO-M-TOLUIC ACID;2-NITRO-3-METHYLBENZOIC ACID;BL-ME-0;3-Methyl-2-n;Fluralaner-028;RSYY(Apremilast)-19;3-Methyl-2-nitrobenz;-2-nitrobenzoic acid;Fluralaner Impurity 49;3-Methyl-2-nitrobenzoic
CBNumber:
CB9223457
분자식:
C8H7NO4
포뮬러 무게:
181.15
MOL 파일:
5437-38-7.mol

3-Methyl-2-nitrobenzoic acid 속성

녹는점
220-223 °C (lit.)
끓는 점
314.24°C (rough estimate)
밀도
1.4283 (rough estimate)
굴절률
1.5468 (estimate)
저장 조건
Sealed in dry,Room Temperature
물리적 상태
powder to crystal
산도 계수 (pKa)
2.26±0.10(Predicted)
색상
흰색에서 거의 흰색
수용성
22&C에서 <0.1g/100mL
BRN
1960698
InChI
InChI=1S/C8H7NO4/c1-5-3-2-4-6(8(10)11)7(5)9(12)13/h2-4H,1H3,(H,10,11)
InChIKey
DGDAVTPQCQXLGU-UHFFFAOYSA-N
SMILES
C(O)(=O)C1=CC=CC(C)=C1[N+]([O-])=O
CAS 데이터베이스
5437-38-7(CAS DataBase Reference)
EPA
3-Methyl-2-nitrobenzoic acid (5437-38-7)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 Xi,Xn
위험 카페고리 넘버 36/37/38-20/21/22
안전지침서 26-36-36/37/39-22-37
WGK 독일 3
TSCA Yes
HS 번호 29163990
그림문자(GHS): GHS hazard pictograms
신호 어: Warning
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고 GHS hazard pictograms
예방조치문구:
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P264 취급 후에는 손을 철저히 씻으시오.
P264 취급 후에는 손을 철저히 씻으시오.
P271 옥외 또는 환기가 잘 되는 곳에서만 취급하시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P302+P352 피부에 묻으면 다량의 물로 씻으시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
NFPA 704
1
2 0

3-Methyl-2-nitrobenzoic acid MSDS


3-Methyl-2-nitrobenzoic acid

3-Methyl-2-nitrobenzoic acid C화학적 특성, 용도, 생산

화학적 성질

white to slightly yellow crystalline powder

용도

2-Nitro-m-toluic Acid, is a building block used for the synthesis of various compounds. It can be used for the synthesis of novel Indolin-2-one derivatives as protein tyrosine phosphatase 1B inhibitors.

일반 설명

Prisms or white crystalline solid.

공기와 물의 반응

Insoluble in water.

반응 프로필

3-Methyl-2-nitrobenzoic acid is a nitrated carboxylic acid. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry.

화재위험

Information concerning the flash point of 3-Methyl-2-nitrobenzoic acid is not available. 3-Methyl-2-nitrobenzoic acid is probably combustible.

Purification Methods

Recrystallise it from EtOH. The methyl ester has m 74o (from MeOH), and the amide [60310-07-8] M 180.1, has m 192o (needles from H2O, prisms from EtOH). [Beilstein 9 H 480, 9 IV 1722.]

3-Methyl-2-nitrobenzoic acid 준비 용품 및 원자재

원자재

준비 용품


3-Methyl-2-nitrobenzoic acid 공급 업체

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