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T6394

Sigma-Aldrich

Timolol maleate salt

≥98% (TLC), powder

Synonym(s):

S-(−)-1-(t-Butylamino)-3-[(4-morpholino-1,2,5-thiadiazol-3-yl)oxy]-2-propanol maleate salt, Timolol hydrogen maleate

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About This Item

Empirical Formula (Hill Notation):
C13H24N4O3S · C4H4O4
CAS Number:
26921-17-5
Molecular Weight:
432.49
EC Number:
248-111-5
MDL number:
MFCD00058356
UNSPSC Code:
12352200
PubChem Substance ID:
24277810
NACRES:
NA.77
Pricing and availability is not currently available.

Quality Level

200

Assay

≥98% (TLC)

form

powder

optical activity

[α]25/D -5.4°, c = 4.9 in 1 M HCl(lit.)

color

white to off-white

mp

202-203 °C (lit.)

solubility

H2O: soluble
ethanol: soluble

ε (extinction coefficient)

8,700 at 294 nm at 1 M

originator

Merck & Co., Inc., Kenilworth, NJ, U.S.

SMILES string

[H]\C(=C(/[H])C(O)=O)C(O)=O.CC(C)(C)NC[C@H](O)COc1nsnc1N2CCOCC2

InChI

1S/C13H24N4O3S.C4H4O4/c1-13(2,3)14-8-10(18)9-20-12-11(15-21-16-12)17-4-6-19-7-5-17;5-3(6)1-2-4(7)8/h10,14,18H,4-9H2,1-3H3;1-2H,(H,5,6)(H,7,8)/b;2-1-/t10-;/m0./s1

InChI key

WLRMANUAADYWEA-NWASOUNVSA-N

Gene Information

human ... ADRB1(153) , ADRB2(154) , ADRB3(155)

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Application

Timolol maleate has been used as an adrenergic β-blocker for evaluating cardiovascular functions in mice5. It has also been used for evaluating the uptake of 86Rb+ in rat cardiomyocytes6.

Biochem/physiol Actions

Timolol maleate is a class II anti-arrhythmic agent that functions as a non-selective β-adrenoceptor antagonist, a vasodilator and an anti-glaucoma agent. Studies have reported that timolol maleate can be used for the treatment of infantile hemangioma (IH)7.

Features and Benefits

This compound was developed by Merck & Co., Inc., Kenilworth, NJ, U.S.. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Preparation Note

Timolol maleate is soluble in ethanol and water.

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Warning

Hazard Statements

H302,H361

Hazard Classifications

Acute Tox. 4 Oral - Repr. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SLBC3834V
061K1290
045H1255
045H1254
073H0074

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Verena Prokosch et al.
PloS one, 8(2), e49730-e49730 (2013-03-08)
Optic nerve atrophy caused by abnormal intraocular pressure (IOP) remains the most common cause of irreversible loss of vision worldwide. The aim of this study was to determine whether topically applied IOP-lowering eye drugs affect retinal ganglion cells (RGCs) and
Ajith Chakkittakandiyil et al.
Pediatric dermatology, 29(1), 28-31 (2011-12-14)
Therapeutic options for superficial infantile hemangiomas (IH) are limited. Recently, timolol maleate gel, a topical nonselective beta-blocker, has been reported as a potentially effective treatment for superficial IH. This study is an extension of a previously published pilot study designed
G C Chiou et al.
Journal of ocular pharmacology, 8(3), 183-190 (1992-01-01)
An ocular hypertensive rabbit eye model was used to study the effect of L- and D-timolol on retinal and choroidal blood flow. Ocular hypertension was induced artificially by raising the intraocular pressure to 40 mmHg which reduced the ocular blood
Sveinn Hakon Hardarson
Acta ophthalmologica, 91 Thesis 2, 1-47 (2013-03-09)
ABSTRACT.: Malfunction of retinal blood flow or oxygenation is believed to be involved in various diseases. Among them are retinal vessel occlusions, diabetic retinopathy and glaucoma. Reliable, non-invasive technology for retinal oxygen measurements has been scarce and most of the
Hsien Chan et al.
Pediatrics, 131(6), e1739-e1747 (2013-05-08)
Timolol maleate 0.5% gel is a safe and effective medication for treating superficial infantile hemangiomas (IHs) in infants with a median age of 9 weeks. Forty-one infants who had superficial IHs without ulceration and not near mucosal surfaces were recruited
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