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

Amlodipine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(±)-Amlodipine-d4 Maleate (2-chlorophenyl-d4) Stable Isotopes CS-C-01271 2714486-25-4 Enquire
(R)-Amlodipine-d4 Di-O-benzoyl L-Tartaric Acid Salt Stable Isotopes CS-T-102505 890046-37-4(Unlabelled) Enquire
(S)-Amlodipine-d4 Di-p-Toluoyl-D-tartrate Stable Isotopes CS-T-102499 1215226-53-1(Unlabelled) Enquire
3-O-Desmethyl Amlodipine-d5 Stable Isotopes CS-T-96737 Not Available Enquire
5-O-Desethyl Amlodipine-d3 Stable Isotopes CS-T-96738 Not Available Enquire
Amlodipine-d4 Stable Isotopes CS-CX-00109 1185246-14-3 In Stock
Amlodipine-d4 Maleic Acid Salt (2-Chlorophenyl-d4) Stable Isotopes CS-T-95037 2714486-25-4 Enquire
N-Nitroso Levoamlodipine D4 Stable Isotopes CS-O-58365 ---- Enquire
N-Nitroso Amlodipine D4 Stable Isotopes CS-O-52005 Not Available discontinued
R-Amlodipine-d4 Stable Isotopes CS-O-06404 1346616-97-4 In Stock
S-Amlodipine Besylate-D4 Stable Isotopes CS-O-50703 150566-71-5(Unlabelled) Enquire
Amlodipine 13C4 Stable Isotopes CS-CX-00105 1261395-19-0 Enquire
Amlodipine 13C6 Stable Isotopes CS-CX-00106 1261392-81-7 Enquire
Amlodipine benzenesulfonate 13C6 Stable Isotopes CS-CX-00107 1261392-82-8 Enquire
Amlodipine benzenesulfonate D3 Stable Isotopes CS-CX-00108 219125-17-4 Enquire
Amlodipine benzenesulfonate, racemic mixture 13C Stable Isotopes CS-EK-00810 111470-99-6 unlabeled Enquire
Amlodipine D4 Maleate Stable Isotopes CS-O-02810 88150-47-4 (Unlabeled) Enquire
S-Amlodipine D4 Stable Isotopes CS-O-06405 1346617-19-3 Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Amlodipine API CS-O-10834 88150-42-9 In Stock
Amlodipine Besylate API CS-O-10961 111470-99-6 In Stock
Amlodipine Hydrochloride API CS-O-48754 246852-07-3 Enquire
Amlodipine Maleate API CS-O-03795 88150-47-4 In Stock
Amlodipine Mesylate API CS-O-47266 246852-12-0 Enquire
Levamlodipine Besylate Hemipentahydrate API CS-EO-03315 884648-62-8 Enquire
Amlodipine nicotinate API CS-O-36537 Not Available Enquire
Levamlodipine maleate API CS-ED-01846 135969-53-8 Enquire


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Amlodipine Metabolite 4 Metabolite CS-T-52137 113994-45-9 Enquire
Levamlodipine M10 metabolite Metabolite CS-O-51783 Not Available Enquire
Levamlodipine M12 metabolite Metabolite CS-O-51784 Not Available Enquire
Levamlodipine M4 metabolite Metabolite CS-O-51782 Not Available Enquire
Amlodipine carboxylic acid Metabolite CS-CX-00104 90445-14-0 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(R)-Amlodipine Hemi-dibenzoyl-L-tartrate Impurity CS-T-66436 890046-37-4 Enquire
2-[(2-Chlorophenyl)methylene]-4-[2-(1,3-dihydro-1,3-dioxo-2H... Impurity CS-T-72617 400024-08-0 Enquire
Amlodipin EP Impurity D Impurity CS-O-16348 113994-41-5 In Stock
Amlodipine aminoethyl Impurity CS-O-52456 2923811-73-6 Enquire
Amlodipine Aspartic Acid Impurity Impurity CS-P-07029 400602-35-9 Enquire
Amlodipine Azido Impurity Impurity CS-T-04601 88150-46-3 In Stock
Amlodipine Besylate Impurity D Besylate salt Impurity CS-EO-02310 2733700-89-3 Enquire
Amlodipine EP Impurity A Impurity CS-O-07173 88150-62-3 In Stock
Amlodipine EP Impurity B Impurity CS-O-07174 721958-72-1 In Stock
Amlodipine EP Impurity C Impurity CS-O-07175 721958-74-3 In Stock
Amlodipine EP Impurity D HCl Impurity CS-O-52528 2414962-06-2 Enquire
Amlodipine EP Impurity D Oxalate Salt Impurity CS-O-07176 1216406-90-4 In Stock
Amlodipine EP Impurity E Impurity CS-O-07177 140171-65-9 In Stock
Amlodipine EP Impurity E Maleate Impurity CS-P-07032 400024-12-6 In Stock
Amlodipine EP Impurity F Impurity CS-O-07178 140171-66-0 In Stock
Amlodipine EP Impurity G Impurity CS-O-30465 43067-01-2 In Stock
Amlodipine EP Impurity H Impurity CS-O-07180 318465-73-5 In Stock
Amlodipine Glucose + Galactose adduct Impurity CS-O-50281 ---- Enquire
Amlodipine glycolic adduct Impurity CS-O-48804 ---- Enquire
Amlodipine Impurity 1 Impurity CS-EO-00053 496024-43-2 In Stock
Amlodipine Impurity 21 Impurity CS-O-48139 79781-21-8 Enquire
Amlodipine Impurity 23 Impurity CS-O-03636 88150-75-8 In Stock
Amlodipine Impurity 29 Impurity CS-P-08869 93848-82-9 In Stock
Amlodipine Impurity 3 Impurity CS-O-60319 90445-05-9 Enquire
Amlodipine Impurity 31 Impurity CS-O-36165 949155-12-8 Enquire
Amlodipine Impurity 38 Impurity CS-O-52354 88150-61-2 Enquire
Amlodipine Impurity 40 Impurity CS-EO-04104 223734-99-4 Enquire
Amlodipine Impurity 43 Impurity CS-O-59560 400602-36-0 Enquire
Amlodipine Impurity 61 Impurity CS-P-09095 39562-06-6 Enquire
Amlodipine Impurity F Maleate Impurity CS-P-07026 400024-11-5 Enquire
Amlodipine Mannitol Adduct Impurity CS-EO-00301 ---- In Stock
Amlodipine Mannitol Adduct Acetate Salt Impurity CS-T-93231 ---- In Stock
Amlodipine Mannitol Adduct HCl Salt Impurity CS-O-47351 Not Available Enquire
Amlodipine morpholine impurity Impurity CS-O-43800 2387405-44-7 Enquire
Amlodipine N-Galactose Impurity CS-P-03118 ---- Enquire
Amlodipine N-Glucose Impurity CS-O-57338 ---- Enquire
Amlodipine N-Lactoside Impurity CS-P-03120 749864-27-5 In Stock
Amlodipine N-Lactoside (Mixture of Diastereomers) Impurity CS-RS-00113 2173291-00-2 Enquire
Amlodipine orotate Impurity CS-ED-41929 914941-70-1 Enquire
Amlodipine Related Compound A Impurity CS-BX-00696 2138811-33-1 In Stock
Atorvastatin-Amlodipine Adduct Impurity CS-T-93457 425408-16-8 In Stock
Benzenesulfonic Acid Ethyl Ester Impurity CS-O-07354 515-46-8 In Stock
Deschloro Amlodipine Impurity CS-T-73778 88150-52-1 In Stock
Deschloro Amlodipine besilate salt Impurity CS-ED-20889 1078163-17-3 Enquire
Deschloro Phthaloylamlodipine Impurity CS-O-49150 Not Available Enquire
Diethyl Amlodipine besylate salt impurity Impurity CS-O-16051 ---- In Stock
Dimethoxy Impurity Deschloro Amlodipine Impurity CS-O-49151 Not Available Enquire
Hydroxyethyl Phthalyl Amlodipine Impurity CS-O-41207 3079028-35-3 In Stock
N-Fomyl Amlodipine Impurity CS-P-07027 93848-81-8 In Stock
Phthaloyl Amlodipine Dimethyl Ester Impurity CS-T-96003 140171-50-2 Enquire
R-Amlodipine Impurity CS-T-03629 103129-81-3 In Stock
R-Amlodipine Besilate Impurity CS-O-07185 828247-64-9 Enquire
S (-) AMLODIPINE IMPURITY A Impurity CS-O-54142 1221741-20-3 Enquire
S (-) AMLODIPINE IMPURITY B Impurity CS-O-54141 1456891-55-6 Enquire
(S)-Amlodipine Di-p-Toluoyl-D-tartrate Impurity CS-T-66275 1215226-53-1 Enquire
(Z)-Ethyl 2-(2-chlorobenzylidene)-4-(2-(1,3-dioxoisoindolin-... Impurity CS-O-40835 Not Available Enquire
5-ethyl 7-methyl 6-(2-chlorophenyl)-8-methyl-3,4-dihydroxy-2... Impurity CS-O-35924 Not Available Enquire
Alogliptin impurity Q Impurity CS-T-28281 3891-07-4 Enquire
Amlodipine For Peak Identification Impurity CS-K-00236 111470-99-6 Enquire
Amlodipine Galactose Adduct Impurity CS-EO-01338 Not Available Enquire
Amlodipine Impurity Impurity CS-P-07028 103094-30-0 Enquire
Amlodipine Impurity 19 Impurity CS-EO-01926 Not Available Enquire
Amlodipine Impurity 25 Impurity CS-EO-01200 Not Available Enquire
Amlodipine Impurity 32 Impurity CS-P-08720 1621516-91-3 Enquire
Amlodipine Impurity 34 Impurity CS-P-08501 Not Available Enquire
Amlodipine Impurity 8 Impurity CS-P-07030 110962-94-2 Enquire
Amlodipine Lactose adduct Impurity CS-T-93508 749864-27-5 Enquire
Amlodipine Methyl Ester Impurity CS-EO-01585 Not Available Enquire
Dehydro Amlodipine N-Oxide Impurity CS-P-08597 2418591-36-1 Enquire
Desmethyl Amlodipine Impurity CS-O-14974 113994-37-9 Enquire
Di-acid Amlodipine Impurity CS-O-15058 1821498-25-2 Enquire
R-Amlodipine hemipentahydrate Impurity CS-O-45850 103129-81-3 (Freebase) Enquire


EP Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Amlodipine for Peak Identification EP D,E & F mixture EP Standards CS-EG-03302 Not Available Enquire
Amlodipine for peak identification(Y0001067) EP Standards CS-BX-02702 111470-99-6 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Amlodipine Bromo intermediate Intermediate CS-O-46556 1309115-67-0 Enquire
p-Cl-Amlodipine Intermediate CS-T-66576 90445-02-6 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Chloro-3-oxobutanoyl chloride Fine Chemicals CS-MM-47714 41295-64-1 Enquire