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
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)
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
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.
N-Bromosuccinimide Price
- Product number
- 8.41501
- Product name
- 2-Sulfobenzoic anhydride
- Purity
- for synthesis
- Packaging
- 25G
- Price
- $112
- Updated
- 2024/03/01
- Product number
- S0124
- Product name
- 2-Sulfobenzoic Anhydride
- Purity
- >97.0%(T)
- Packaging
- 25g
- Price
- $128
- Updated
- 2024/03/01
- Product number
- S0124
- Product name
- 2-Sulfobenzoic Anhydride
- Purity
- >97.0%(T)
- Packaging
- 100g
- Price
- $384
- Updated
- 2024/03/01
- Product number
- A13314
- Product name
- 2-Sulfobenzoic anhydride, 94%
- Packaging
- 25g
- Price
- $62.65
- Updated
- 2024/03/01
- Product number
- A13314
- Product name
- 2-Sulfobenzoic anhydride, 94%
- Packaging
- 100g
- Price
- $168.65
- Updated
- 2024/03/01
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
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View Lastest Price from 2-Sulfobenzoic anhydride manufacturers
- 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
- Product
- 2-Sulfobenzoic anhydride 81-08-3
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50000KG/month
- Release date
- 2024-11-14
- 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