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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Atropine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Atropine 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 Atropine-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.

Atropine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(±)-Atropine-d3 (N-methyl-d3) Stable Isotopes CS-T-94822 1276197-36-4 Enquire
a-Hydroxymethyl Atropine-d5 Stable Isotopes CS-T-101291 Not Available Enquire
Apoatropine-d5 Stable Isotopes CS-T-101897 Not Available Enquire
Atropine-D3 Hydrochloride Stable Isotopes CS-O-46961 33952-38-4(Unlabelled) Enquire
Benzatropine-d3 Stable Isotopes CS-O-56898 202529-15-5 Enquire
N-Isopropyl Noratropine-d7 Stable Isotopes CS-T-101210 Not Available Enquire
rac Homatropine Hydrobromide-d3 Stable Isotopes CS-T-101049 Not Available Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(±)-tropate 1αH,5αH-Tropan-3α-ol sulfate hemihydrate API CS-T-48420 5908-99-6 In Stock
Apoatropine API CS-O-32843 500-55-0 In Stock
Atropine API CS-O-03855 51-55-8 Enquire
Atropine Sulphate API CS-O-00828 55-48-1 In Stock
Benzatropine API CS-L-00034 86-13-5 Enquire
Homatropine Hydrobromide API CS-O-01626 51-56-9 In Stock
Homatropine Methylbromide API CS-O-01614 80-49-9 In Stock


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-hydroxy-phenyl Atropine Metabolite CS-O-56232 ---- Enquire
3-hydroxy-phenyl Atropine Metabolite CS-O-56233 ---- Enquire
4'-Hydroxyatropine Metabolite CS-O-47982 21642-86-4 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(R)-(-)-Littorine Hydrochloride Impurity CS-EK-00401 21956-47-8 (Free base) In Stock
Atropine EP Impurity B Impurity CS-EO-00503 16839-98-8 In Stock
Atropine EP Impurity E Impurity CS-O-15086 949092-65-3 In Stock
Atropine EP Impurity G Impurity CS-EO-00504 21956-47-8 In Stock
Atropine Impurity 17 Impurity CS-O-55584 17488-50-5 Enquire
Atropine Impurity 30 Impurity CS-O-59971 78215-11-9 Enquire
Atropine N-Oxide Hydrochloride Impurity CS-K-00214 4574-60-1 In Stock
Benzatropine n-oxide Impurity CS-O-56897 ---- Enquire
Dehydrohomatropine bromide Impurity CS-O-43325 Not Available Enquire
Homatropine Impurity CS-O-59466 87-00-3 Enquire
α- formyl- (3- endo) - 8- methyl- 8- azabicyclo[3.2.1] oct- ... Impurity CS-O-56550 22226-37-5 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3α-Phenylacetoxy Tropane Intermediate CS-T-84816 1690-22-8 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Nitroso Atropine EP Impurity B Nitrosamine CS-EO-02299 55855-45-3 In Stock
N-Nitroso Atropine EP Impurity B-d5 Nitrosamine CS-O-60419 55855-45-3 (Unlabeled) Enquire
N-Nitroso Homatropine Nitrosamine CS-O-57792 ---- Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
8-methyl-8-azabicyclo (3,2,1) octan-3yl 2-phenylacetate Building Blocks CS-O-56548 16052-33-8 Enquire