2-Sulfobenzoic anhydride

Product Name: 2-Sulfobenzoic anhydride
CAS No.: 81-08-3
Chemical Name: 2-Sulfobenzoic anhydride
Synonyms: 1,1-dioxo-2,1;2-Sulfobenzoic anhyd;SULFOBENZOIC ANHYDRIDE;2-SULFOBENZOIC ANHYDRIDE;O-SULFOBENZOIC ANHYDRIDE;2-SULPHOBENZOIC ANHYDRIDE;2-SulfobenzoicAnhydride>2-SULFOBENZOIC ACID ANHYDRIDE;2-Sulfobenzoic Acid Anhydrade;o-Sulfobenzoic acid anhydride
CBNumber: CB4286815
Molecular Formula: C7H4O4S
Formula Weight: 184.17
MOL File: 81-08-3.mol

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2-Sulfobenzoic anhydride Property

Melting point:: 116-124 °C
Boiling point:: 184-186 °C18 mm Hg(lit.)
Density: 1.6114 (rough estimate)
refractive index: 1.6290 (estimate)
Flash point:: 184-186°C/18mm
storage temp.: Store below +30°C.
solubility: soluble in Toluene
form: Crystals or Crystalline Powder
color: White to beige
Sensitive: Moisture Sensitive
BRN: 139893
CAS DataBase Reference: 81-08-3(CAS DataBase Reference)
NIST Chemistry Reference: 2-Sulfobenzoic acid cyclic anhydride(81-08-3)
EPA Substance Registry System: 3H-2,1-Benzoxathiol-3-one, 1,1-dioxide (81-08-3)

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Safety

Hazard Codes: C
Risk Statements: 34-20/21/22
Safety Statements: 22-24/25-45-36/37/39-26
RIDADR: 2923
WGK Germany: 3
F: 21
TSCA: Yes
HS Code: 29163900

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 8.41501
Product name: 2-Sulfobenzoic anhydride
Purity: for synthesis
Packaging: 25G
Price: $112
Updated: 2024/03/01

TCI Chemical

Product number: S0124
Product name: 2-Sulfobenzoic Anhydride
Purity: >97.0%(T)
Packaging: 25g
Price: $128
Updated: 2024/03/01

TCI Chemical

Product number: S0124
Product name: 2-Sulfobenzoic Anhydride
Purity: >97.0%(T)
Packaging: 100g
Price: $384
Updated: 2024/03/01

Alfa Aesar

Product number: A13314
Product name: 2-Sulfobenzoic anhydride, 94%
Packaging: 25g
Price: $62.65
Updated: 2024/03/01

Alfa Aesar

Product number: A13314
Product name: 2-Sulfobenzoic anhydride, 94%
Packaging: 100g
Price: $168.65
Updated: 2024/03/01

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2-Sulfobenzoic anhydride Chemical Properties,Usage,Production

Chemical Properties

White to beige crystals or crystalline powder

Uses

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 Preparation Products And Raw materials

Raw materials

Preparation Products

Chlorophenol Red Phenol Red

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2-Sulfobenzoic anhydride Suppliers

Austria 1 Belgium 4 CHINA 126 Czech Republic 3 Europe 2 France 1 Germany 7 India 6 Japan 5 Poland 1 Switzerland 3 Ukraine 1 United Kingdom 11 United States 36 Global 207

Hangzhou Cedareal Technology Co., Ltd.

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Jinan Kangluoyuan Trading Co., Ltd

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J & K SCIENTIFIC LTD.

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Meryer (Shanghai) Chemical Technology Co., Ltd.

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INTATRADE GmbH

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Email: sales@intatrade.de
Country: Germany
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Alfa Aesar

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TCI (Shanghai) Development Co., Ltd.

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Beijing HwrkChemical Technology Co., Ltd

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Energy Chemical

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Shijiazhuang Sdyano Fine Chemical Co., Ltd.

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View Lastest Price from 2-Sulfobenzoic anhydride manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD

Product: 2-Sulfobenzoic anhydride 81-08-3
Price: US $1.00/KG
Min. Order: 1KG
Purity: 90%
Supply Ability: 1ton/month
Release date: 2021-05-28

Nanjing jinheyou Trading Co., Ltd.

Product: 2-Sulfobenzoic anhydride 81-08-3
Price: US $0.00/g
Min. Order: 1g
Purity: 99.5%min
Supply Ability: 20kg/week
Release date: 2019-10-28

81-08-3, 2-Sulfobenzoic anhydrideRelated Search:

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2-SULFOBENZOIC ANHYDRIDE

2-SULPHOBENZOIC ANHYDRIDE

2-SULFOBENZOIC ACID ANHYDRIDE

2-SULFOBENZOIC ACID CYCLIC ANHYDRIDE

2,1-BENZOXATHIOL-3-ONE-1,1-DIOXIDE

1,3-DIHYDRO-2,1LAMBDA6-BENZOXATHIOLE-1,1,3-TRIONE

3-Oxo-3H-2,1-benzoxathiole 1,1-dioxide

3H-Benzo[c][1,2]oxathiol-3-one 1,1-dioxide

2-Sulfobenzoic Acid Anhydrade

2-Sulfobenzoic acid cyclic anhydride,99%

2-Sulfobenzoic acid cyclic anhydride,95%

2-Sulfobenzoic anhyd

2-[oxo-[oxo-(2-sulfophenyl)methoxy]methyl]benzenesulfonic acid

SULFOBENZOIC ANHYDRIDE

O-SULFOBENZOIC ACID CYCLIC ANHYDRIDE

O-SULFOBENZOIC ANHYDRIDE

O-SULFOBENZOIC CYCLIC ANHYDRIDE

O-SULFONIC ACID CYCLIC ANHYDRIDE

3H-2,1-Benzoxathiol-3-one, 1,1-dioxide

3H-2,1-Benzoxathiol-3-one,1,1-dioxide

Benzoic acid, 2-sulfo-, cyclic anhydride

Benzoic acid, o-sulfo-, cyclic anhydride

o-Sulfobenzoic acid anhydride

2-SULFOBENZOIC ACID CYCLIC ANHYDRIDE, TECH. 90%

o-Sulfobenzoic anhydride, tech., 93%

2-Sulfobenzoic acid anhydrade(2-Sulfobenzoic acid unhydrate)

1,1-Dioxobenzo[c]oxathiol-3-one

2-Sulfobenzoic acid cycloanhydride

2-Oxa-1-thia(VI)indan-1,1,3-trione

3H-2,1-Benzoxathiole-3-one 1,1-dioxide

2-SulfobenzoicAnhydride&gt

2-SULFOBENZOIC ANHYDRIDE FOR SYNTHESIS

1,1-dioxo-2,1

High purity 2-Sulfobenzoic anhydride

81-08-3

81-80-3

1981-08-03

1981-8-3

1981-08-3

C7H4O4S

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