CHEMICAL AND PHYSICAL PROPERTIES
| Boiling Point | >100 |
|---|---|
| Melting Point | 202-203 |
| Solubility | soluble in water |
| LogP | 1.8 |
| Stability/Shelf Life | Solutions of timolol maleate are stable up to a pH of 12. In general, timolol ophthalmic solutions should be protected from light and stored in tight containers at 15-30 °C and protected from freezing. ... Timolol gel-forming ophthalmic solution should be stored at 15-25 °C. /Timolol Maleate/ |
| Caco2 Permeability | 159 |
| Dissociation Constants | 9.53 |
| Other Experimental Properties | White crystals from ethanol; mp: 201.5-202.5 °C; specific optical rotation: -12.0 deg at 24 °C/405 (concentration by volume = 5 g in 1 N hydrogen chloride); specific optical rotation: 4.2 deg at 25 °C/D; maximum absorption (O.1 N hydrogen chloride): 294 nm (A = 200, 1%, 1 cm); sol in water, ethanol, methanol; sparingly sol in chloroform; very slightly sol in cyclohexane; practically insol in isooctane, ether; stable in soln up to pH 12. /Timolol maleate/ |
COMPUTED DESCRIPTORS
| Molecular Weight | 316.42 g/mol |
|---|---|
| XLogP3 | 1.8 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 8 |
| Rotatable Bond Count | 7 |
| Exact Mass | 316.15691181 g/mol |
| Monoisotopic Mass | 316.15691181 g/mol |
| Topological Polar Surface Area | 108 Ų |
| Heavy Atom Count | 21 |
| Formal Charge | 0 |
| Complexity | 310 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 1 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
(S)-timolol (anhydrous) is the (S)-(-) (more active) enantiomer of timolol. A beta-adrenergic antagonist, both the hemihydrate and the maleate salt are used in the mangement of glaucoma, hypertension, angina pectoris and myocardial infarction, and for the prevention of migraine. It has a role as an antiglaucoma drug, an antihypertensive agent, an anti-arrhythmia drug and a beta-adrenergic antagonist. It is a conjugate base of a (S)-timolol(1+). It is an enantiomer of a (R)-timolol.