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

Entecavir Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3’,5’-Di-O-benzyl Entecavir-13C2,15N Stable Isotopes CS-T-96368 142217-81-0 (Unlabled) Enquire
Entecavir D2 Stable Isotopes CS-P-07837 142217-69-4(Unlabelled) Enquire
Entecavir hydrochloride 13C3,15N Stable Isotopes CS-EK-01540 911196-94-6 unlabeled Enquire
Entecavir-13C2,15N Stable Isotopes CS-O-06585 1329796-53-3 In Stock
Entecavir-13C2,15N 3’’-O-β-D-Glucuronide Stable Isotopes CS-T-101432 Not Available Enquire
Entecavir Hydrochloride 13C3 15N Stable Isotopes CS-O-16068 911196-94-6 (Unlabeled) Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Entecavir API CS-T-21655 142217-69-4 In Stock
Entecavir Monohydrate API CS-O-00229 209216-23-9 In Stock


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(1R,3S,4R)-ent-Entecavir Impurity CS-ED-42189 1367369-81-0 Enquire
2-Amino-6-(benzyloxy)purine, 2-Amino-6-(phenylmethoxy)-9H-pu... Impurity CS-O-32227 19916-73-5 In Stock
8-Hydroxy Entecavir Impurity CS-O-16045 2204369-23-1 In Stock
8-Methoxy Entecavir Impurity CS-O-16042 2349444-69-3 In Stock
Entecavir Impurity 24 Impurity CS-O-32226 110567-22-1 In Stock
Entecavir impurity B Impurity CS-O-15226 1367369-77-4 In Stock
Entecavir Lactose Adduct Impurity 1 Impurity CS-EO-02268 Not Available Enquire
(1S,2S,3S,5S)-3-(benzyloxy)-5-(6-(benzyloxy)-2-(tritylamino)... Impurity CS-O-35421 1345339-53-8 Enquire
1’-epi-Entecavir-di-o-benzyl Ether Impurity CS-T-92158 1354695-86-5 Enquire
1R,3S,4S-Entecavir Impurity CS-T-92310 1333204-94-6 Enquire
1S,3S,4R-Entecavir Impurity CS-T-21669 1367369-79-6 Enquire
2-Hydroxy-2,3-tetrahydrofuranyl Entecavir Impurity CS-O-20093 1984788-96-6 Enquire
4’-epi-Entecavir-di-o-benzyl Ether Impurity CS-T-92181 1354695-85-4 Enquire
4-Dehydroxy-4-dimethylhydroxysilyl Entecavir Impurity CS-T-14809 870614-82-7 Enquire
4-Dehydroxy-4-dimethylphenylsilyl Entecavir Impurity CS-T-14811 701278-07-1 Enquire
6-(benzyloxy)-9-((1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl... Impurity CS-O-35420 1661867-19-1 Enquire
Entecavir EP Impurity F Impurity CS-T-05539 649761-24-0 Enquire
Entecavir Impurity 2 Impurity CS-P-07838 142217-79-6 Enquire
Entecavir Impurity 5 Impurity CS-P-07839 84868-56-4 Enquire
Entecavir Impurity 6 (ent-Entecavir-di-O-benzyl Ether) Impurity CS-P-07840 1354695-82-1 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2R,3S,5S)-3-(Benzyloxy)-5-[2-[[(4-methoxyphenyl)diphenylmet... Intermediate CS-O-31966 142217-78-5 In Stock


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Entecavir Glucuronide Glucuronide CS-O-11921 Not Available Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Furoentecavir Fine Chemicals CS-O-34535 Not Available Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Entecavir Monohydrate Secondary Standards CS-SS-26074-500MG 209216-23-9 Enquire


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1R,3R,4R Entecavir Therapeutic CS-T-21665 1367369-76-3 In Stock
1S,3R,4R Entecavir [Entecavir impurity D] Therapeutic CS-O-15227 1367369-80-9 In Stock
ent-Entecavir Therapeutic CS-T-21658 188399-46-4 In Stock


Chiral

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1R,3R,4S Entecavir Chiral CS-O-14795 1367369-78-5 Enquire