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

Hydantoin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
5-(4-Hydroxyphenyl)-5-phenyl-d5-hydantoin-2,4,5-13C3 Stable Isotopes CS-C-01445 2784-27-2 (Unlabelled) Enquire
5-(Carboethoxymethylidene)hydantoin-13C,15N2 Stable Isotopes CS-T-101729 Not Available Enquire
dl-5-(4-Hydroxyphenyl)-5-Phenyl-Hydantoin-1,3-15N2,d5 Stable Isotopes CS-BU-00041 2784-27-2 (Unlabelled) In Stock
5-(4-Hydroxyphenyl)-5-phenyl-d5-hydantoin-15N2 Stable Isotopes CS-C-01444 369656-71-3 Enquire
Hydantoin-4,5 13C2,1 15N Stable Isotopes CS-T-55700 1189495-02-0 Enquire
Hydantoin-5 13C,1 15N Stable Isotopes CS-T-55701 1189697-61-7 Enquire
Iprodione-d5 (3,5-dichlorophenyl-2,4,6-d3; hydantoin-5,5-d2) Stable Isotopes CS-C-01110 1215631-57-4 Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Hydantoin API CS-T-26418 461-72-3 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(S)-5-Methyl-5-phenylhydantoin Impurity CS-T-80534 27539-12-4 Enquire
1,3-Dibromo-5,5-dimethylhydantoin Impurity CS-M-58068 77-48-5 In Stock
1-Aminohydantoin Impurity CS-O-14443 6301-02-6 In Stock
2-NP-AHD Impurity CS-W-00150 623145-57-3 In Stock
Ampicillin Hydantoin Analog Impurity CS-O-56798 ---- Enquire
(R)-5-Methylhydantoin Impurity CS-T-33979 55147-68-7 Enquire
(S)-5-(4-Hydroxyphenyl)-5-ethylhydantoin Impurity CS-T-28220 65567-35-3 Enquire
(S)-5-Methylhydantoin Impurity CS-T-82541 40856-73-3 Enquire
3-Methyl-5-(S)-isopropyl Hydantoin Impurity CS-T-34124 71921-91-0 Enquire
3-Piperazinylmethyl-5,5-dimethylhydantoin Impurity CS-T-20295 879062-90-5 Enquire
5,5-Diphenylhydantoin-3-butyric Acid Impurity CS-T-53822 56976-66-0 Enquire
5-Methylhydantoin Impurity CS-T-33985 616-03-5 Enquire
Atazanavir (Cyclized N--formyl hydantoin Impurity CS-O-41446 Not Available Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,3-Dichloro-5,5-dimethylhydantoin Intermediate CS-M-57247 118-52-5 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,3-Dibromohydantoin Fine Chemicals CS-O-38092 3304-74-3 Enquire
2-Thiohydantoin Fine Chemicals CS-T-44189 503-87-7 Enquire
5-Hydroxyhydantoin Fine Chemicals CS-T-27489 29410-13-7 Enquire
5-Iso-propylidenehydantoin Fine Chemicals CS-ED-01858 7526-77-4 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-Nitrosohydantoin Nitrosamine CS-ED-02404 42579-28-2 Enquire
N-Nitroso 1-Aminohydantoin Nitrosamine CS-O-46179 Not Available Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
5-(4-Methylphenyl)hydantoin Secondary Standards CS-SS-25146-50MG Not Available Enquire
DMDM Hydantoin Secondary Standards CS-SS-24361-1ML Not Available Enquire


Reagents

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,3-Diiodo-5,5-dimethylhydantoin Reagents CS-O-57886 2232-12-4 Enquire


Industries

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-Aminohydantoin hydrochloride Industries CS-O-30528 2827-56-7 In Stock