2-Sulfobenzoic anhydride

Names

[ CAS No. ]:
81-08-3

[ Name ]:
2-Sulfobenzoic anhydride

[Synonym ]:
2-Sulfobenzoic anhydride
3H-2,1-Benzoxathiol-3-one, 1,1-dioxide (9CI)
MFCD00005879
1,1-dioxo-2,1λ<sup>6</sup>-benzoxathiol-3-one
3H-2,1-Benzoxathiol-3-one, 1,1-dioxide
EINECS 201-322-6
3H-2,1-Benzoxathiol-3-one 1,1-dioxide

Chemical & Physical Properties

[ Density]:
1.6±0.1 g/cm3

[ Boiling Point ]:
314.7±0.0 °C at 760 mmHg

[ Melting Point ]:
116-124 °C

[ Molecular Formula ]:
C₇H₄O₄S

[ Molecular Weight ]:
184.169

[ Flash Point ]:
140.6±19.3 °C

[ Exact Mass ]:
183.983032

[ PSA ]:
68.82000

[ LogP ]:
0.79

[ Vapour Pressure ]:
0.0±0.6 mmHg at 25°C

[ Index of Refraction ]:
1.629

MSDS

Click to get detail MSDS

Safety Information

[ Personal Protective Equipment ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ Hazard Codes ]:
C:Corrosive;

[ Risk Phrases ]:
R20/21/22;R34

[ Safety Phrases ]:
S22-S24/25-S45-S36/37/39-S26

[ RIDADR ]:
NONH for all modes of transport

[ WGK Germany ]:
3

[ HS Code ]:
29163900

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 29163900

Articles

Modification of epsilon-amino group of lysine in proteins by acylation with pyromellitic dianhydride and o-sulphobenzoic anhydride.

FEBS Lett. 120 , 275, (1980)

De novo sequencing of two new cyclic theta-defensins from baboon (Papio hamadryas) leukocytes by matrix-assisted laser desorption/ionization mass spectrometry.

Rapid Commun. Mass Spectrom. 24(5) , 599-604, (2010)

Two cyclic theta-defensin peptides were isolated from leukocytes of the hamadryas baboon, Papio hamadryas, and purified to homogeneity by gel electrophoresis and reversed-phase high-performance liquid...

Derivatization of fatty alcohol ethoxylate non-ionic surfactants using 2-sulfobenzoic anhydride for characterization by liquid chromatography/mass spectrometry.

Rapid Commun. Mass Spectrom. 24(1) , 120-8, (2010)

A derivatization procedure has been developed for the improved characterization of fatty alcohol ethoxylate non-ionic surfactants by liquid chromatography/mass spectrometry. The end hydroxyl group of ...