Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for L-histidine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our L-histidine 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 L-histidine-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.
Our L-histidine-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.
L-histidine Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-Nitroso-L-histidine-d5 | Stable Isotopes | CS-O-58986 | 932446-62-3 (Unlabeled) | Enquire |
| L-Histidine Hydrochloride Hydrate (13C6,15N3) | Stable Isotopes | CS-T-103152 | 202468-43-7 | Enquire |
| L-Histidine Hydrochloride Hydrate 13C6 | Stable Isotopes | CS-T-96308 | 201740-88-7 | Enquire |
| N,N-Dimethyl-L-histidine-d6 Methyl Ester Dihydrochloride | Stable Isotopes | CS-T-96970 | Not Available | Enquire |
| Nα-Fmoc-L-histidine-1-15N | Stable Isotopes | CS-T-96957 | Not Available | Enquire |
| Nα-Fmoc-L-histidine-3-15N | Stable Isotopes | CS-T-96956 | Not Available | Enquire |
| 1-Methyl-L-histidine-d5 | Stable Isotopes | CS-T-81959 | 1795786-96-7 | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| L-Histidine mono Hydrochloride | API | CS-O-30629 | 5934-29-2 | In Stock |
| DL-Histidine | API | CS-DE-00107 | 4998-57-6 | Enquire |
| DL-Histidine hydrochloride monohydrate | API | CS-DK-00013 | 6459-59-2 | Enquire |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-Methyl-L-histidine | Impurity | CS-T-33970 | 332-80-9 | In Stock |
| Boc-His(3-Bom)-OSu | Impurity | CS-O-56992 | 129672-10-2 | Enquire |
| L-Histidine N-oxide | Impurity | CS-O-56192 | ---- | Enquire |
| L-histidine 7-amido-4-methylcoumarin | Impurity | CS-AD-00747 | 191723-64-5 | Enquire |
| L-Histidine Benzyl Ester | Impurity | CS-T-26320 | 46921-20-4 | Enquire |
| Na-Boc-L-histidine | Impurity | CS-T-07575 | 17791-52-5 | Enquire |
| Na-Boc-L-histidine methyl ester | Impurity | CS-N-00474 | 2488-14-4 | Enquire |
| N-Acetyl-L-histidine | Impurity | CS-T-30913 | Not Available | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3-N-Methyl-L-histidine | Intermediate | CS-T-58260 | 368-16-1 | In Stock |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| L-Histidine | Fine Chemicals | CS-T-26321 | 71-00-1 | In Stock |
| Nt-(tert-butoxycarbonyl)-L-histidine | Fine Chemicals | CS-O-49863 | 46924-53-2 | Enquire |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-Nitroso-L-histidine | Nitrosamine | CS-O-46161 | 932446-62-3 | Enquire |
Secondary Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| L-Histidine | Secondary Standards | CS-SS-24154-1GM | 71-00-1 | Enquire |
Stable Isotope Reagent
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| L-Histidine-13C6 | Stable Isotope Reagent | CS-CH-00096 | 55443-59-9 | Enquire |
| L-Histidine-13C6, A-Amine-15N | Stable Isotope Reagent | CS-CH-00097 | 620973-21-9 | Enquire |
| L-Histidine-15N3 | Stable Isotope Reagent | CS-CH-00099 | 1217456-12-6 | Enquire |
| L-Histidine-Amine-15N | Stable Isotope Reagent | CS-CH-00100 | 1202062-94-9 | Enquire |
| 1-Methyl-d3-L-histidine | Stable Isotope Reagent | CS-C-00862 | 91037-48-8 | Enquire |
| DL-Histidine-alpha,beta,beta-d3 | Stable Isotope Reagent | CS-C-00533 | 344299-50-9 | Enquire |
| DL-Histidine-α-15N | Stable Isotope Reagent | CS-T-95805 | 287484-37-1 | Enquire |
| DL-Histidine-α,α,β,β-D3 | Stable Isotope Reagent | CS-C-00853 | 344299-50-9 | Enquire |
| L-Histidine (Trt)-OH-15N3, Fmoc | Stable Isotope Reagent | CS-CH-00095 | 1217696-12-2 | Enquire |
| L-Histidine-13C6,15N3 | Stable Isotope Reagent | CS-CH-00098 | 741656-40-6 | Enquire |
| L-Histidine-d3 (α-d1, imidazole-2,5-d2) hydrochloride monohy... | Stable Isotope Reagent | CS-BX-01030 | Not Available | Enquire |
Biochemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| L-Histidine (base) for cell culture, 99%, Endotoxin (BET) 1E... | Biochemicals | CS-SR-00505 | 71-00-1 | Enquire |
| L-Histidine Hydrochloride for cell culture, 99%, Endotoxin (... | Biochemicals | CS-SR-00506 | 5934-29-2 | Enquire |
Building Blocks
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-(Ethoxycarbonyl)-2-[(ethoxycarbonyl)thio]-N,N-dimethyl-L-h... | Building Blocks | CS-T-54306 | 162138-72-9 | Enquire |
| 1-(Triphenylmethyl)-N-(phenylmethylene)-L-histidine Methyl E... | Building Blocks | CS-T-45799 | 69937-82-2 | Enquire |
| L-Valyl-L-histidine | Building Blocks | CS-T-46288 | 13589-07-6 | Enquire |
| Na-Cbz-L-histidine | Building Blocks | CS-T-10676 | 14997-58-1 | Enquire |
| N-Acetyl-L-histidine Methyl Ester | Building Blocks | CS-T-64339 | 36097-48-0 | Enquire |
Polymers
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Poly(L-histidine) | Polymers | CS-PM-00047 | 26062-48-6 | Enquire |
| Poly(L-histidine), a,w-bis-(amino)-terminated | Polymers | CS-PM-01035 | Not Available | Enquire |