Benzolamide

Modify Date: 2025-08-27 10:41:56

Benzolamide Structure
Benzolamide structure
Common Name Benzolamide
CAS Number 3368-13-6 Molecular Weight 320.36900
Density 1.746g/cm3 Boiling Point 585.9ºC at 760mmHg
Molecular Formula C8H8N4O4S3 Melting Point N/A
MSDS N/A Flash Point 308.2ºC

 Use of Benzolamide


Benzolamide (CL11366) is a potent carbonic anhydrase (CA) inhibitor, with Kis of 15 nM, 9 nM, 94 nM and 78 nM for hCA I, hCA II, EcoCAγ and VchCAγ, respectively. Benzolamide also inhibits CAS3, with a Ki of 54 nM. Benzolamide can be used for the research of glaucoma and seizures[1][2][3].

 Names

Name 5-(benzenesulfonamido)-1,3,4-thiadiazole-2-sulfonamide
Synonym More Synonyms

 Benzolamide Biological Activity

Description Benzolamide (CL11366) is a potent carbonic anhydrase (CA) inhibitor, with Kis of 15 nM, 9 nM, 94 nM and 78 nM for hCA I, hCA II, EcoCAγ and VchCAγ, respectively. Benzolamide also inhibits CAS3, with a Ki of 54 nM. Benzolamide can be used for the research of glaucoma and seizures[1][2][3].
Related Catalog
Target

Ki: 15 nM (hCA I), 9 nM (hCA II), 94 nM (EcoCAγ), 78 nM (VchCAγ), 54 nM (CAS3)[1][2]

In Vitro Benzolamide inhibits hCA I, hCA II, EcoCAγ and VchCAγ, with Kis of 15 nM, 9 nM, 94 nM and 78 nM, respectively[1]. Benzolamide shows selectivity for CAS3 (Ki=54 nM) over CAS1 (Ki=2115 nM) and CAS2 (Ki=410 nM)[2].
In Vivo Benzolamide (90 µmol/kg; i.p.) decreases brain pH and suppresses electrographic post-asphyxia seizures in rats[3]. Animal Model: Male and female Wistar Han rats (11-day-old)[3] Dosage: 90 µmol/kg Administration: A single i.p. Result: Induced a fast brain acidosis of a comparable magnitude. Suppressed electrographic seizures after asphyxia by slowing down the recovery of brain pH.
References

[1]. Prete SD, et, al. Escherichia coli γ-carbonic anhydrase: characterisation and effects of simple aromatic/heterocyclic sulphonamide inhibitors. J Enzyme Inhib Med Chem. 2020 Dec;35(1):1545-1554.

[2]. Vullo D, et, al. Sulfonamide Inhibition Studies of the β-Class Carbonic Anhydrase CAS3 from the Filamentous Ascomycete Sordaria macrospora. Molecules. 2020 Feb 25;25(5):1036.

[3]. Pospelov AS, et, al. Carbonic anhydrase inhibitors suppress seizures in a rat model of birth asphyxia. Epilepsia. 2021 Jun 27.

 Chemical & Physical Properties

Density 1.746g/cm3
Boiling Point 585.9ºC at 760mmHg
Molecular Formula C8H8N4O4S3
Molecular Weight 320.36900
Flash Point 308.2ºC
Exact Mass 319.97100
PSA 177.11000
LogP 2.92120
Index of Refraction 1.689
Storage condition 2-8°C

 Safety Information

HS Code 2935009090

 Customs

HS Code 2935009090
Summary 2935009090 other sulphonamides VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:35.0%

 Synonyms

3dbu
benzenesulfonylamino-[1,3,4]thiadiazole-2-sulfonic acid amide
5-phenylsulfonamide-1,3,4-thiadiazole-2-sulfonamide
5-[(phenylsulfonyl)amino]-1,3,4-thiadiazole-2-sulfonamide
W 1803
2-(Phenylsulfonylamino)-1,3,4-thiadiazole-5-sulfonamide
5-benzenesulfonamido-1,3,4-thiadiazol-2-sulfonamide
1,3,4-Thiadiazole-2-sulfonamide,5-((phenylsulfonyl)amino)
D8W
2-benzenesulfonamido-1,3,4-thiadiazole-5-sulfonamide
Benzolamide (BZA)
BENZOLAMIDE
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