Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Histidine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our 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 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 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.
Histidine Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-Methyl-L-histidine-d5 | Stable Isotopes | CS-T-81959 | 1795786-96-7 | Enquire |
| 1-Nitroso-L-histidine-d5 | Stable Isotopes | CS-O-58986 | 932446-62-3 (Unlabeled) | Enquire |
| L-Histidine (Trt)-OH-15N3, Fmoc | Stable Isotopes | CS-CH-00095 | 1217696-12-2 | 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 |
| L-Histidine-13C6, A-Amine-15N | Stable Isotopes | CS-CH-00097 | 620973-21-9 | Enquire |
| L-Histidine-13C6,15N3 | Stable Isotopes | CS-CH-00098 | 741656-40-6 | Enquire |
| L-Histidine-15N3 | Stable Isotopes | CS-CH-00099 | 1217456-12-6 | Enquire |
| L-Histidine-Amine-15N | Stable Isotopes | CS-CH-00100 | 1202062-94-9 | 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 |
| rac Histidine-13C6,15N3 | Stable Isotopes | CS-T-96939 | Not Available | Enquire |
API Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (+/-)-Homohistidine | API Standards | CS-T-55680 | 5817-77-6 | Enquire |
| DL-Histidine | API Standards | CS-DE-00107 | 4998-57-6 | Enquire |
| DL-Histidine hydrochloride monohydrate | API Standards | CS-DK-00013 | 6459-59-2 | Enquire |
| Fructose-histidine | API Standards | CS-T-74271 | 25020-13-7 | Enquire |
| Histidine mono Hydrochloride | API Standards | CS-O-01613 | 645-35-2 | In Stock |
| L-Histidine mono Hydrochloride | API Standards | CS-O-30629 | 5934-29-2 | In Stock |
| L-Homohistidine | API Standards | CS-T-55679 | 58501-47-6 | Enquire |
Impurities
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-Methyl-L-histidine | Impurities | CS-T-33970 | 332-80-9 | In Stock |
| 1-Nitroso-L-histidine | Impurities | CS-O-46161 | 932446-62-3 | Enquire |
| 2-Oxo Histidine | Impurities | CS-O-44620 | 151436-49-6 | Enquire |
| Desamino (aS)-Chloro Histidine Methyl Ester | Impurities | CS-T-52062 | 64407-67-6 | Enquire |
| L-histidine 7-amido-4-methylcoumarin | Impurities | CS-AD-00747 | 191723-64-5 | Enquire |
| L-Histidine Benzyl Ester | Impurities | CS-T-26320 | 46921-20-4 | Enquire |
| L-Histidine N-oxide | Impurities | CS-O-56192 | Not Available | Enquire |
| Na-Boc-L-histidine | Impurities | CS-T-07575 | 17791-52-5 | Enquire |
| Na-Boc-L-histidine methyl ester | Impurities | CS-N-00474 | 2488-14-4 | Enquire |
| N-Acetyl-L-histidine | Impurities | CS-T-30913 | Not Available | Enquire |
| N-Fmoc-1-trityl L-Homohistidine | Impurities | CS-T-74645 | 1324564-23-9 | Enquire |
Intermediates
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| α-(Fuoromethyl)-1-trityl-DL-histidine Methyl Ester | Intermediates | CS-T-54899 | 81839-25-0 | Enquire |
| 1-(Triphenylmethyl)-L-histidine | Intermediates | CS-T-87573 | 35146-32-8 | Enquire |
| 1-[(1,1-Dimethylethoxy)carbonyl]-L-histidine | Intermediates | CS-O-49863 | 46924-53-2 | Enquire |
| 2-Mercapto-L-histidine | Intermediates | CS-T-57554 | 2002-22-4 | Enquire |
| 2-Mercapto-L-histidine S-Carboxylic Acid Ethyl Ester Dihydro... | Intermediates | CS-T-57555 | 909272-14-6 | Enquire |
| 3-N-Methyl-L-histidine | Intermediates | CS-T-58260 | 368-16-1 | In Stock |
| Acetyl histidine | Intermediates | CS-ED-37459 | 39145-52-3 | Enquire |
| alpha-Methyl-DL-histidine dihydrochloride | Intermediates | CS-ED-41369 | 32381-18-3 | Enquire |
| Boc-Nalpha-methyl-N-im-trityl-D-histidine | Intermediates | CS-ED-14011 | 1217682-00-2 | Enquire |
| Boc-Nalpha-methyl-N-im-trityl-L-histidine | Intermediates | CS-ED-14012 | 1217610-35-9 | Enquire |
| D-Histidine Methyl Ester | Intermediates | CS-T-79590 | 17720-12-6 | Enquire |
| D-Histidine Methyl Ester Hydrochloride | Intermediates | CS-T-26324 | 4467-54-3 | Enquire |
| D-Histidine methyl ester, HCl | Intermediates | CS-AC-04716 | 92742-29-5 | Enquire |
| DL-Histidine monohydrochloride monohydrate | Intermediates | CS-DK-00003 | 123333-71-1 | Enquire |
| L-Histidine hydrochloride | Intermediates | CS-ED-34093 | 1007-42-7 | Enquire |
| N(Alpha), n-(im)-di-boc-l-histidine methyl ester | Intermediates | CS-AC-03620 | 17791-51-4 | Enquire |
| N-Acetyl-D-histidine | Intermediates | CS-T-64565 | 75983-68-5 | Enquire |
| Na-Fmoc-D-histidine | Intermediates | CS-T-24572 | 157355-79-8 | Enquire |
| Na-Fmoc-L-histidine | Intermediates | CS-T-24571 | 116611-64-4 | Enquire |
| N-Boc-1-phenylmethyl-d-histidine | Intermediates | CS-AC-04552 | 65717-64-8 | Enquire |
| Nim-Trityl-D-histidine | Intermediates | CS-T-83491 | 199119-46-5 | Enquire |
| Prolyl-Histidine | Intermediates | CS-ED-33572 | 92027-43-5 | Enquire |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| D-Histidine | Fine Chemicals | CS-DA-00245 | 351-50-8 | Enquire |
| D-Histidine hydrochloride monohydrate | Fine Chemicals | CS-DA-00560 | 6341-24-8 | Enquire |
| histidine tert-butyl ester | Fine Chemicals | CS-DV-03598 | 759432-08-1 | Enquire |
| L-Histidine | Fine Chemicals | CS-T-26321 | 71-00-1 | In Stock |
| L-Tyrosine | Fine Chemicals | CS-O-30962 | 60-18-4 | In Stock |
Building Blocks
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| "1-(Ethoxycarbonyl)-2-[(ethoxycarbonyl)thio]-N,N-dimethyl-L-... | 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-Boc-D-histidine | Building Blocks | CS-T-07574 | 50654-94-9 | Enquire |
| Na-Cbz-D-histidine | Building Blocks | CS-T-10675 | 67424-93-5 | 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 |