C13H24N4O3S
316.42 g/mol
Pharmaceutical IntermediateWarning
(R)-timolol
CAS26839-76-9EC248-033-1
Category
Pharmaceutical Intermediate
Compound Class
Amine
Primary Use
Pharmaceutical Intermediate
(R)-timolol is the (R)-(+) enantiomer of timolol and is the less active form compared to the (S)-enantiomer. It is a chiral compound used as a pharmaceutical intermediate in the manufacturing of active pharmaceutical ingredients.
pharmaceutical intermediate
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
3-Aminopiperidine-2,6-dione hydrochloride
CAS2686-86-4
pharmaceutical intermediate
ReferenceSame Category
Benzylhydroxylamine hydrochloride
CAS2687-43-6
pharmaceutical intermediate
ReferenceSame Category
2,5-Diaminopyridine dihydrochloride
CAS26878-35-3
pharmaceutical intermediate
ReferenceSame Category
4-(2-Fluoro-4-nitrophenyl)morpholine
CAS2689-39-6
pharmaceutical intermediate
Referencestereoisomer of
(S)-(−)-timolol
CAS26839-75-8
pharmaceutical raw material
Referencesame scaffold
3-chloro-4-morpholino-1,2,5-thiadiazole
CAS30165-96-9
pharmaceutical intermediate
Safety Reference
Warning
H336May cause drowsiness or dizziness
Customs Tariff Classification
The international HS code for (R)-timolol (CAS 26839-76-9) is 2934.99.
HS code (international, 6-digit)
2934.99
EU CN code (8-digit)
2934 99 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
(2R)-1-(tert-butylamino)-3-[(4-morpholin-4-yl-1,2,5-thiadiazol-3-yl)oxy]propan-2-ol
InChIKey
BLJRIMJGRPQVNF-SNVBAGLBSA-N
SMILES
CC(C)(C)NC[C@H](COC1=NSN=C1N2CCOCC2)O
Synonyms (16)
- Timolol EP Impurity A
- (+)-timolol
- (R)-timolol
- (R)-timolol CRS
- TIMOLOL ANHYDROUS, (R)-
- TIMOLOL MALEATE IMPURITY A
- TIMOLOL, (R)-
- Timolol Maleate Impurity 17
- d-Timolol
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