138890-62-7 Category:
  • #LGM Pharma is a Brinzolamide CAS# 138890-62-7 API supplier distributor based in the USA. Inquire about DMF, cGMP, price, availability, delivery, purity, and more.
  • #Questions? Call our customer API support number 1-(800)-881-8210.
  • #LGM Pharma offers this active ingredient but not the finished dosage forms.

Product Details:

  • CAS No: 138890-62-7
  • AHFC code: 52:10.0
  • Synonyms: (R)-4-(Ethylamino)-3,4-dihydro-2-(3-methoxypropyl)-2H-thieno(3,2-e)-1,2-thiazine-6-sulfonamide 1,1-dioxide, 2H-Thieno(3,2-e)-1,2-thiazine-6-sulfonamide, 4-(ethylamino)-3,4-dihydro-2-(3-methoxypropyl)-, 1,1-dioxide, (R)-, AL 4862, AL-4862, Azopt, Brinzolamide, UNII-9451Z89515
  • ATC Code: S01EC04
  • Chemical Formula: C12-H21-N3-O5-S3
  • Molecular Weight: 383.512
  • Assay/Purity: Typically NLT 98%
  • DrugBank: DB01194 (APRD00475)
  • SMILES: C1[N,,](CCCOC)S(=O)(=O)c2sc(cc2[C,H]1NCC)S(N)(=O)=O
  • InChl: 1S/C12H21N3O5S3/c1-3-14-10-8-15(5-4-6-20-2)23(18,19)12-9(10)7-11(21-12)22(13,16)17/h7,10,14H,3-6,8H2,1-2H3,(H2,13,16,17)/t10-/m0/s1 Download
  • PubChem: 68844
  • IUPAC: (4R)-4-(ethylamino)-2-(3-methoxypropyl)-1,1-dioxo-2H,3H,4H-1$l^{6},7,2-thieno[3,2-e][1$l^{6},2]thiazine-6-sulfonamide

Additional Details

For the treatment of elevated intraocular pressure in patients with ocular hypertension or open-angle glaucoma.
Used in the treatment of glaucoma, brinzolamide inhibits aqueous humor formation and reduces elevated intraocular pressure. Elevated intraocular pressure is a major risk factor in the pathogenesis of optic nerve damage and glaucomatous visual field loss. Brinzolamide can decrease intraocular pressure by approximately 16-19% in patients with elevated intraocular pressure.
Mode of Action:
Brinzolamide is a highly specific inhibitor of CA-II, which is the main CA isoenzyme involved in the secretion of aqueous humor. Inhibition of CA in the ciliary process of the eye slows the formation of bicarbonate, and reduces sodium and fluid transport. This results in a reduction in the rate of aqueous humor secretion and the intraocular pressure. Brinzolamide is absorbed systemically following topical ocular administration. Since it has a high affinity for CA-II, brinzolamide binds extensively to red blood cells, where CA-II is primarily found. As sufficient CA-II activity remains, adverse effects resulting from the systemic inhibition of CA by brinzolamide are not observed. The metabolite N-desethyl brinzolamide is also formed. This metabolite binds to CA and accumulates in red blood cells as well. In the presence of brinzolamide, the metabolite binds mainly to carbonic anhydrase I (CA-I).
General Reference:
Ermis SS, Ozturk F, Inan UU: Comparing the effects of travoprost and brinzolamide on intraocular pressure after phacoemulsification. Eye. 2005 Mar;19(3):303-7. Pubmed Iester M, Altieri M, Michelson G, Vittone P, Traverso CE, Calabria G: Retinal peripapillary blood flow before and after topical brinzolamide. Ophthalmologica. 2004 Nov-Dec;218(6):390-6. Pubmed Kaup M, Plange N, Niegel M, Remky A, Arend O: Effects of brinzolamide on ocular haemodynamics in healthy volunteers. Br J Ophthalmol. 2004 Feb;88(2):257-62. Pubmed Iester M: Brinzolamide ophthalmic suspension: a review of its pharmacology and use in the treatment of open angle glaucoma and ocular hypertension. Clin Ophthalmol. 2008 Sep;2(3):517-23. Pubmed DeSantis L: Preclinical overview of brinzolamide. Surv Ophthalmol. 2000 Jan;44 Suppl 2:S119-29. Pubmed
Products currently covered by valid US Patents are offered for R&D use in accordance with 35 USC 271(e)+A13(1). Any patent infringement and resulting liability is solely at buyer risk.

API’s From Quality Manufacturers:

  • Cost effective materials based on specific requirements
  • Small quantities for initial research and larger development quantities towards product commercialization


  • Technical packages, letters of access to filed DMFs
  • Complete assistance in any regulatory filings
  • Top quality GMP certified manufacturers
  • Have necessary regulatory credentials