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

Maleimide Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide-d17 Stable Isotopes CS-T-84715 73122-12-0 Enquire
N-Ethyl-d3 Maleimide Stable Isotopes CS-T-92308 1246816-40-9 Enquire
N-Ethyl-d5-maleimide Stable Isotopes CS-T-95260 360768-37-2 Enquire
S-[3-(N-(Ethyl-d5)maleimide)] Captopril Stable Isotopes CS-T-97519 Not Available Enquire


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Hydroxymaleimide API Standards CS-T-56120 4814-74-8 Enquire


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"Ethylenediamine-N,N,N',N'-tetraacetic Acid Tetrakis[N-(2-Am... Impurities CS-T-54455 1246816-47-6 Enquire
"N-(4-Dimethylamino-3,5-dinitrophenyl)maleimide" Impurities CS-T-53480 3475-74-9 Enquire
6-Maleimido-1-hexanal Impurities CS-T-57374 1076198-37-2 Enquire
Bisindolylmaleimide III Impurities CS-T-07032 137592-43-9 Enquire
Bisindolylmaleimide XI Hydrochloride Impurities CS-T-07034 145333-02-4 Enquire
Fluorescein 5-Maleimide Impurities CS-T-54771 75350-46-8 Enquire
Fluorescein 6-Maleimide Impurities CS-T-54775 161598-40-9 Enquire
Maleimide Impurities CS-T-31454 541-59-3 Enquire
N-(2-Boc-amino)ethyl Maleimide Impurities CS-T-07404 134272-63-2 Enquire
N-(Methoxycarbonyl) Maleimide Impurities CS-T-32269 55750-48-6 Enquire
N-Ethyl Maleimide Impurities CS-T-22111 128-53-0 In Stock
Octyl Maleimide Impurities CS-T-37900 4080-76-6 Enquire
S-[3-(N-Ethylmaleimide)] Captopril Impurities CS-T-74159 185804-96-0 Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"1,10-Phenanthroline Maleimide" Intermediates CS-T-39208 351870-31-0 Enquire
"1,2-Phenylene-bis-maleimide" Intermediates CS-T-60408 13118-04-2 Enquire
"2,3-Dibromomaleimide" Intermediates CS-EL-03525 1122-10-7 Enquire
"N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide" Intermediates CS-T-38517 15178-63-9 Enquire
1,4-Phenylene-bis-maleimide Intermediates CS-T-60409 3278-31-7 Enquire
Biotin-maleimide Intermediates CS-O-48400 116919-18-7 Enquire
Bisindolylmaleimide III Hydrochloride Intermediates CS-T-67025 683775-59-9 Enquire
Bisindolylmaleimide iv Intermediates CS-AC-09769 119139-23-0 Enquire
Bisindolylmaleimide V Intermediates CS-AC-09729 113963-68-1 Enquire
Bisindolylmaleimide X Intermediates CS-T-67048 131848-97-0 Enquire
Carbostyril Maleimide Intermediates CS-T-10325 1076199-75-1 Enquire
DBCO-Maleimide Intermediates CS-ED-12453 1395786-30-7 Enquire
Ethylene-bis-maleimide Intermediates CS-T-54451 5132-30-9 Enquire
Maleimide PEG2-NHS Ester Intermediates CS-ED-27350 955094-26-5 In Stock
N-(1-Pyrenyl) Maleimide Intermediates CS-T-41025 42189-56-0 Enquire
N-(2-Aminoethyl)maleimide Trifluoroacetic Acid Salt Intermediates CS-T-47808 146474-00-2 Enquire
N-(2-Aminopropyl)maleimide Intermediates CS-ED-35092 110008-25-8 Enquire
N-(2-Sulfoethyl)maleimide Sodium Salt Intermediates CS-T-42939 1299434-16-4 Enquire
N-(3-Fluoranthyl)maleimide Intermediates CS-T-75343 60354-76-9 Enquire
N-(4-Aminophenyl)maleimide Intermediates CS-DE-01481 29753-26-2 Enquire
N-(4-Hydroxyphenyl)maleimide Intermediates CS-T-78501 7300-91-6 Enquire
N-(4-Methylumbelliferyl)maleimide Intermediates CS-T-81033 211565-47-8 Enquire
N-(4-Nitrophenyl)maleimide Intermediates CS-DE-01482 4338-06-1 Enquire
N-(4-Pyridyl)maleimide Intermediates CS-T-41125 7300-95-0 Enquire
N-(5-Aminopentyl)maleimide Trifluoroacetic Acid Salt Intermediates CS-T-47993 222159-87-7 Enquire
N-[2-(Trimethylammonium)ethyl]maleimide Chloride Intermediates CS-T-88141 69684-10-2 Enquire
N-[4-(-Carboxycyclohexylmethyl)]maleimide Intermediates CS-T-10362 64987-82-2 Enquire
N-[p-(Acetylmercuric)phenyl]maleimide Intermediates CS-T-47311 117259-61-7 Enquire
N-Benzyl-2,3-dibromomaleimide Intermediates CS-ED-20834 91026-00-5 Enquire
N-Phenylmaleimide Intermediates CS-ED-33421 941-69-5 Enquire
N-Propylmaleimide Phenothiazine Intermediates CS-T-40789 1391052-13-3 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
doxorubicin-hydrazone-caproyl-maleimide Fine Chemicals CS-RS-00019 151038-96-9 Enquire
N-Methylmaleimide Fine Chemicals CS-T-34192 930-88-1 Enquire