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

Aspartic Acid Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"L-Aspartic Acid-15N, N-Fmoc" Stable Isotopes CS-CH-00069 287484-33-7 Enquire
DL-Aspartic acid-2,3,3-d3 Stable Isotopes CS-BX-01029 14341-75-4 Enquire
L-Aspartic Acid (Otbu)-OH-13C4,15N, Fmoc Stable Isotopes CS-CH-00059 1160760-08-6 Enquire
L-Aspartic acid 2-13C Stable Isotopes CS-CX-00375 160033-95-4 Enquire
L-Aspartic Acid-1,2-13C2 Stable Isotopes CS-CH-00060 109376-41-2 Enquire
L-Aspartic Acid-1-13C Stable Isotopes CS-CH-00062 81201-97-0 Enquire
L-Aspartic Acid-1-13C, 15N Stable Isotopes CS-CH-00061 285978-02-1 Enquire
L-Aspartic Acid-13C, N-Boc Stable Isotopes CS-CH-00074 286460-64-8 Enquire
L-Aspartic Acid-13C4, 15N Stable Isotopes CS-CH-00063 202468-27-7 Enquire
L-Aspartic Acid-15N Stable Isotopes CS-CH-00067 3715-16-0 Enquire
L-Aspartic Acid-15N(Otbu), N-Fmoc Stable Isotopes CS-CH-00065 1217457-38-9 Enquire
L-Aspartic Acid-15N, D3 Stable Isotopes CS-CH-00066 1308264-52-9 Enquire
L-Aspartic Acid-15N, N-Boc Stable Isotopes CS-CH-00068 204523-15-9 Enquire
L-Aspartic Acid-2-13C,15N Stable Isotopes CS-CH-00071 149541-24-2 Enquire
N-[2-(4-Methoxyphenyl)-1-methylethyl]aspartic Acid-d3 Stable Isotopes CS-T-96898 Not Available Enquire
N-Acetyl -L-Aspartic Acid-d3 Stable Isotopes CS-T-64260 1383929-94-9 Enquire
N-Acetyl-DL-aspartic Acid D3 Stable Isotopes CS-O-15396 89829-69-6 Enquire
N-Acetyl-L-aspartic Acid-d3 Stable Isotopes CS-T-64532 284665-15-2 Enquire


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
DL-Aspartic Acid API Standards CS-T-04259 617-45-8 In Stock
L-Aspartic acid sodium salt monohydrate API Standards CS-G-00117 323194-76-9 Enquire


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Amlodipine Aspartic Acid Impurity Impurities CS-P-07029 400602-35-9 Enquire
Aspartic Acid a-Methyl Ester Impurities CS-T-04258 17812-32-7 Enquire
Beta-Benzyl L-Aspartic Acid N-carboxyanhydride Impurities CS-T-48808 13590-42-6 Enquire
Carbamoylaspartic acid Impurities CS-O-57346 13184-27-5 Enquire
Indole-3-acetyl L-Aspartic acid Impurities CS-P-07087 2456-73-7 In Stock
L-Aspartic acid magnesium Impurities CS-AC-08859 2068-80-6 In Stock
N-[(1-Ethyl-1,4-dihydro-7-methyl-4-oxo-1,8-naphthyridin-3-yl... Impurities CS-T-76491 1212087-50-7 Enquire
N-[(4-Fluorophenyl)sulfonyl]-D-aspartic Acid 1,4-Dimethyl Es... Impurities CS-T-54898 1218918-76-3 Enquire
N-Boc-D-aspartic Acid Impurities CS-T-07453 62396-48-9 Enquire
N-Boc-D-aspartic Acid 1-tert-Butyl Ester Impurities CS-T-68728 77004-75-2 Enquire
N-tert-Boc-L-aspartic Acid tert-Butyl Ester Impurities CS-T-07452 34582-32-6 Enquire
β-Aspartyl-Aspartic Acid Impurities CS-P-00651 60079-22-3 In Stock


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"N-BOC-L-Aspartic acid, 1-methyl ester" Intermediates CS-AC-03850 98045-03-5 Enquire
(1-(4-methoxyphenyl)propan-2-yl)aspartic acid Intermediates CS-O-46240 Not Available Enquire
Arginyl-glycyl-aspartic acid Intermediates CS-ED-34020 99896-85-2 Enquire
Aspartic acid(otbu)-allyl ester hcl Intermediates CS-AC-04265 218938-66-0 Enquire
Aspartic acid, diethyl ester Intermediates CS-ED-11700 43101-48-0 Enquire
Boc-L-aspartic acid beta-methyl ester dicyclohexylammonium s... Intermediates CS-AC-01919 135941-84-3 Enquire
D-Aspartic Acid 1-Methyl Ester Intermediates CS-T-48382 65414-78-0 Enquire
D-Aspartic Acid 4-Methyl Ester Hydrochloride Intermediates CS-T-48381 22728-89-8 Enquire
D-Aspartic Acid Dimethyl Ester Hydrochloride Intermediates CS-T-04263 69630-50-8 Enquire
DL-Aspartic acid dimethyl ester hydrochl Intermediates CS-CD-00200 14358-33-9 Enquire
L-(-)-threo-3-Hydroxyaspartic acid Intermediates CS-T-79041 7298-99-9 Enquire
L-Aspartic Acid 1-tert-Butyl Ester Hydrochloride Intermediates CS-T-04253 176164-02-6 Enquire
L-Aspartic Acid 4-Methyl Ester Hydrochloride Intermediates CS-M-57931 16856-13-6 Enquire
L-Aspartic acid 4-tert-butyl ester Intermediates CS-M-57277 3057-74-7 Enquire
L-aspartic Acid a-(ß-naphthylamide) Intermediates CS-AD-00831 635-91-6 Enquire
L-Aspartic Acid Calcium Salt Hydrochloride Intermediates CS-T-04279 92533-40-9 Enquire
L-Aspartic acid potassium salt Intermediates CS-ED-11641 1115-63-5 Enquire
N-Acetyl-DL-aspartic acid Intermediates CS-ED-36966 2545-40-6 Enquire
N-a-Fmoc-D-aspartic acid a-t-butyl ester Intermediates CS-M-29428 134098-70-7 Enquire
N-a-Fmoc-D-aspartic acid ß-t-butyl ester Intermediates CS-M-29427 112883-39-3 Enquire
N-a-Fmoc-L-aspartic acid a-allyl ester Intermediates CS-M-29425 144120-53-6 Enquire
N-a-Fmoc-L-aspartic acid a-t-butyl ester Intermediates CS-M-29426 129460-09-9 Enquire
N-a-Fmoc-L-aspartic acid ß-benzyl ester Intermediates CS-M-29423 86060-84-6 Enquire
N-a-Fmoc-L-aspartic acid ß-t-butyl ester Intermediates CS-M-29424 71989-14-5 In Stock
N-a-t-Boc-D-aspartic acid ß-benzyl ester Intermediates CS-M-29422 51186-58-4 Enquire
N-a-t-Boc-L-aspartic acid ß-benzyl ester Intermediates CS-M-29419 7536-58-5 Enquire
N-a-t-Boc-L-aspartic acid ß-cyclohexyl ester Intermediates CS-M-29420 73821-95-1 Enquire
N-Carbobenzoxy-dl-aspartic acid Intermediates CS-T-71176 4515-21-3 Enquire
N-Carbobenzyloxy-D-aspartic Acid Intermediates CS-T-50273 78663-07-7 Enquire
N-Carbobenzyloxy-L-aspartic Acid 1-Benzyl Ester Intermediates CS-T-50275 4779-31-1 Enquire
N-Cbz-L-aspartic Acid Intermediates CS-T-10259 1152-61-0 Enquire
N-Fmoc-D-aspartic Acid Intermediates CS-T-24546 136083-57-3 Enquire
N-Fmoc-L-aspartic Acid Intermediates CS-T-24547 119062-05-4 Enquire
N-Methyl-D-Aspartic acid Intermediates CS-T-37356 6384-92-5 Enquire
N-tert-Butyloxycarbonyl-L-aspartic Acid -β-tert-Butyl E... Intermediates CS-T-09969 1676-90-0 Enquire
Sodium D-aspartic acid Intermediates CS-ED-11676 10329-81-4 Enquire
Z-L-aspartic acid-di-tert-butyl ester Intermediates CS-AC-04447 42417-76-5 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Aspartic acid Fine Chemicals CS-M-29429 56-84-8 In Stock
L-Aspartic acid calcium salt Fine Chemicals CS-O-41061 39162-75-9 Enquire
N-Acetyl-L-aspartic Acid Fine Chemicals CS-T-64315 997-55-7 Enquire
N-Formyl-L-aspartic acid Fine Chemicals CS-O-34236 19427-28-2 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Boc-a-methyl-D-aspartic acid Building Blocks CS-M-29535 1217826-44-2 Enquire
Boc-a-methyl-L-aspartic acid Building Blocks CS-M-29537 1217679-66-7 Enquire
Boc-L-aspartic acid beta-benzyl ester chloromethylketone Building Blocks CS-T-68643 172702-58-8 Enquire
Fmoc-a-methyl-L-aspartic acid Building Blocks CS-M-29545 1217830-18-6 Enquire
N-Benzyloxycarbonyl-L-aspartic Acid -β-tert-Butyl Ester... Building Blocks CS-T-48967 23632-70-4 Enquire
N-Boc-L-aspartic Acid Building Blocks CS-T-07454 13726-67-5 Enquire
N-Fmoc-L-aspartic Acid 1-Benzyl Ester Building Blocks CS-DJ-00740 86060-83-5 Enquire
N-Tosyl-L-aspartic Acid Building Blocks CS-T-44665 4816-82-4 Enquire