2-Sulfobenzoic anhydride
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2-Sulfobenzoic anhydride 속성
- 녹는점
- 116-124 °C
- 끓는 점
- 184-186 °C18 mm Hg(lit.)
- 밀도
- 1.6114 (rough estimate)
- 굴절률
- 1.6290 (estimate)
- 인화점
- 184-186°C/18mm
- 저장 조건
- Store below +30°C.
- 용해도
- 톨루엔에 용해됨
- 물리적 상태
- 결정 또는 결정성 분말
- 색상
- 흰색에서 베이지색
- 감도
- Moisture Sensitive
- BRN
- 139893
- CAS 데이터베이스
- 81-08-3(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | C | ||
---|---|---|---|
위험 카페고리 넘버 | 34-20/21/22 | ||
안전지침서 | 22-24/25-45-36/37/39-26 | ||
유엔번호(UN No.) | 2923 | ||
WGK 독일 | 3 | ||
F 고인화성물질 | 21 | ||
TSCA | Yes | ||
HS 번호 | 29163900 |
2-Sulfobenzoic anhydride C화학적 특성, 용도, 생산
화학적 성질
White to beige crystals or crystalline powder용도
Polymerization inhibitor.Purification Methods
The anhydride is purified by distillation in a vacuum and readily solidifies to a crystalline mass on cooling. [Heitman J Am Chem Soc 34 1594 1912.] Alternatively purify it by dissolving it in the minimum volume of toluene and refluxing for 2hours using a Dean-Stark trap. Evaporate under reduced pressure and distil the anhydride at 18mm. It is then recrystallised three times from its own weight of dry *C6H6. It is sensitive to moisture and should be stored in the dark in a dry atmosphere. The O-methyloxime has m 110-112o [Levy Tetrahedron Lett 3289 1972]. If the sample has hydrolysed extensively (presence of OH band in the IR) then treat with an equal bulk of SOCl2, reflux it for 3hours (CaCl2 tube), evaporate and distil the residue in a vacuum, then recrystallise it from *C6H6, Et2O/*C6H6 or CHCl3 (EtOH free by passing through Al2O3, or standing over CaCl2). [Clarke & Dreger Org Synth Coll Vol I 495 1941.] It is used for modifying -amino functions of lysyl residues in proteins [Bagree et al. FEBS Lett 120 275 1980]. [Beilstein 19 I 659, 19 II 137, 19 III/IV 1641, 19/4 V 215.]2-Sulfobenzoic anhydride 준비 용품 및 원자재
원자재
준비 용품
2-Sulfobenzoic anhydride 공급 업체
글로벌( 200)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
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Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21700 | 55 |
Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |
Shanghai Longyu Biotechnology Co., Ltd. | +8615821988213 |
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Nanjing jinheyou Trading Co., Ltd. | 15705188088 |
admin@jheyou.com | CHINA | 1268 | 58 |
Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 |
sales@tnjchem.com | China | 34572 | 58 |
HANGZHOU CLAP TECHNOLOGY CO.,LTD | 86-571-88216897,88216896 13588875226 |
sales@hzclap.com | CHINA | 6313 | 58 |
ANHUI WITOP BIOTECH CO., LTD | +8615255079626 |
eric@witopchemical.com | China | 23556 | 58 |
AFINE CHEMICALS LIMITED | 0571-85134551 |
info@afinechem.com | CHINA | 15377 | 58 |
Wuhan Fortuna Chemical Co., Ltd | +86-27-59207850 +86-13986145403 |
info@fortunachem.com | China | 5981 | 58 |
Dayang Chem (Hangzhou) Co.,Ltd. | 571-88938639 +8617705817739 |
info@dycnchem.com | CHINA | 52867 | 58 |