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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Timolol, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Timolol impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Timolol-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Timolol Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Timolol-d9 Maleate Stable Isotopes CS-SN-00084 1286769-65-0(freebase) Enquire
rac Timolol-d5 Maleate Stable Isotopes CS-T-87171 1217260-21-3 Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Timolol Maleate API CS-O-30796 26921-17-5 In Stock
rac Timolol Maleate API CS-T-62080 57073-55-9 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(R)-(+)-Timolol Maleate Impurity CS-T-62081 26839-77-0 In Stock
Isotimolol Impurity CS-T-93673 59697-06-2 In Stock
Timolol EP Impurity A Impurity CS-T-44418 26839-76-9 In Stock
Timolol EP Impurity B (Maleate salt) Impurity CS-EO-03914 610271-55-1 Enquire
Timolol EP Impurity C Impurity CS-T-83261 610271-56-2 Enquire
Timolol EP Impurity E (Maleate salt) Impurity CS-EO-03913 1026075-53-5 (Freebase) Enquire
Timolol EP Impurity F Impurity CS-O-31724 30165-96-9 Enquire
Timolol EP Impurity I Impurity CS-P-06624 2469037-77-0 Enquire
Timolol EP Impurity J Impurity CS-P-06625 ---- Enquire
Timolol Impurity C Impurity CS-P-00195 1391068-18-0 Enquire
Timolol Impurity D Impurity CS-P-00196 30165-97-0 In Stock
Timolol Impurity E Impurity CS-P-00193 1026075-53-5 Enquire
Timolol Impurity G Impurity CS-O-31227 75202-36-7 In Stock
Timolol Related Compound C Impurity CS-BX-00988 610271-57-3 In Stock
Timolol Related Compound E Impurity CS-O-48128 1026075-53-5 (Freebase) Enquire
(S)-4-[4-(Oxiranylmethoxy)-1,2,5-thiadiazol-3-yl]morpholine Impurity CS-T-83969 69500-53-4 Enquire
(S)-Hydroxy Timolol Impurity CS-T-28827 1227468-61-2 Enquire
(S)-Isotimolol Impurity CS-T-30114 158636-96-5 Enquire
2-[4-(4-Morpholinyl)-1,2,5-thiadiazol-3-yl] (R)-(+)-Timolol ... Impurity CS-T-82829 1391068-05-5 Enquire
2-Phenyl-3-tert-butyl-5-(hydroxymethyl)oxazolidine Impurity CS-O-39383 30315-49-2 Enquire
4-(4-Morpholinyl)-1,2,5-Thiadiazol-3(2H)-one 1-Oxide Potassi... Impurity CS-T-83166 79844-78-3 Enquire
Timolol Impurity 5 Impurity CS-P-08932 158636-99-8 Enquire
Timolol Phenol-S-Oxide Impurity CS-EO-00928 Not Available Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3,4-Dichloro-1,2,5-thiadiazole Intermediate CS-T-17743 5728-20-1 Enquire
N-Benzyl-tert-butylamine Intermediate CS-K-00139 3378-72-1 In Stock


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Nitroso Timolol Nitrosamine CS-O-38914 ---- In Stock
N-Nitroso Timolol Impurity B Nitrosamine CS-O-51540 Not Available Enquire
N-Nitroso Timolol Impurity C Nitrosamine CS-O-51541 Not Available Enquire
N-Nitroso Timolol Related Compound E Nitrosamine CS-O-51542 Not Available Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Timolol Maleate Secondary Standards CS-SS-25405-500MG 26921-17-5 Enquire
Timolol Related Compound A Secondary Standards CS-SS-25843-50MG 26839-77-0 Enquire
Timolol Related Compound B Secondary Standards CS-SS-26183-50MG 59697-06-02 Enquire
Timolol Related Compound D Secondary Standards CS-SS-26214-40MG 30165-97-0 Enquire
Timolol Related Compound F Secondary Standards CS-SS-25410-50MG 30165-96-9 Enquire


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Timolol Therapeutic CS-P-00194 26839-75-8 Enquire
Timolol Impurity H Therapeutic CS-O-32470 158636-97-6 Enquire


Analytical Standard

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Nitroso Timolol Analytical Standard CS-O-38914-10MG ---- Enquire
N-nitroso-timolol-100 PPM in Acetonitrile Analytical Standard CS-O-38914-1.5ML ---- Enquire