Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Methionine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Methionine 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 Methionine-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 Methionine-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.
Methionine Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (RS)-S-Adenosyl-L-methionine-d3 (S-methyl-d3) Tetra(p-toluen... | Stable Isotopes | CS-T-102983 | Not Available | Enquire |
| Ademethionine-d3 1,4-Butanedisulfonate (>85%) | Stable Isotopes | CS-T-103021 | 101020-79-5(Unlabelled) | Enquire |
| Decarboxylated S-Adenosylmethionine-d3 Sulfuric Acid | Stable Isotopes | CS-T-94859 | 22365-13-5 (unlabled free base) | Enquire |
| L-Methionine Sulfone-d3 | Stable Isotopes | CS-T-96900 | Not Available | Enquire |
| L-Methionine Sulfoxide,13C | Stable Isotopes | CS-T-102916 | 3226-65-1(Unlabelled) | Enquire |
| L-Methionine-[13C5] (Solution) | Stable Isotopes | CS-I-00662 | 202326-57-6 | Enquire |
| L-Methionine-S-methyl Sulfonium Chloride-d6 Hydrochloride | Stable Isotopes | CS-T-96901 | Not Available | Enquire |
| S-(5'-Adenosyl)-L-methionine-13C5 Sulfate Salt (Synthetic)(M... | Stable Isotopes | CS-T-96655 | Not Available | Enquire |
| S-(5'-Adenosyl)-L-methionine-d3 Disulfate Salt (Synthetic)(M... | Stable Isotopes | CS-T-96656 | Not Available | Enquire |
| DL-Methionine D7 | Stable Isotopes | CS-O-32909 | 59-51-8 (Unlabeled | Enquire |
| DL-Methionine-d3 (S-methyl-d3) | Stable Isotopes | CS-C-00869 | 284665-20-9 | Enquire |
| D-Methionine-d3 (S-methyl-d3) | Stable Isotopes | CS-C-00868 | 284665-18-5 | Enquire |
| L-Methionine [R,S]-Sulfoximine-13C5 | Stable Isotopes | CS-T-62883 | 15985-39-4(Unlabeled) | Enquire |
| L-Methionine-13C | Stable Isotopes | CS-BE-00034 | 63-68-3 (Unlabeled) | Enquire |
| L-Methionine-13C5 | Stable Isotopes | CS-T-82558 | 202326-57-6 | Enquire |
| L-Methionine-S-methyl Sulfonium Chloride-d6 | Stable Isotopes | CS-T-57601 | 362049-54-5 | Enquire |
| Methionine sulfone- D4 | Stable Isotopes | CS-O-35513 | 820-10-0 (Unlabeled) | Enquire |
| Methionine sulfoxide- D4 | Stable Isotopes | CS-O-35514 | 62697-73-8 (Unlabeled) | Enquire |
| N-Fmoc-L-Methionine-34S | Stable Isotopes | CS-P-08203 | 71989-28-1 (Unlabeled) | Enquire |
| S-adenosyl methionine D3 | Stable Isotopes | CS-O-40391 | 68684-40-2 | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (±)-Methionine | API | CS-T-32131 | 59-51-8 | In Stock |
| Methionine | API | CS-O-30653 | 63-68-3 | In Stock |
| Methionine Calcium | API | CS-O-51218 | 93805-84-6 | Enquire |
| Selenomethionine | API | CS-T-42218 | 1464-42-2 | In Stock |
| D-Methionine | API | CS-T-57607 | 348-67-4 | Enquire |
Metabolite
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| DL-Methioninehydroxyanalog calcium | Metabolite | CS-P-07240 | 4857-44-7 | In Stock |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Ac-DL-Met-OH | Impurity | CS-G-00018 | 1115-47-5 | In Stock |
| L-Methionine Sulfoxide | Impurity | CS-T-57600 | 3226-65-1 | In Stock |
| Methionine Impurity D | Impurity | CS-O-59331 | 1879009-96-7 | Enquire |
| Methionine Impurity E | Impurity | CS-O-59333 | ---- | Enquire |
| S-Adenosyl-L-methionine | Impurity | CS-O-30770 | 29908-03-0 | Enquire |
| α-hydroxy-methionine | Impurity | CS-O-14099 | 103063-66-7 | Enquire |
| Decarboxylated S-Adenosylmethionine | Impurity | CS-P-08973 | 22365-13-5 | Enquire |
| Decarboxylated S-Adenosylmethionine Sulfate Salt | Impurity | CS-T-73209 | 67380-81-8 | Enquire |
| D-Methionine 1,1-Dimethylethyl Ester Hydrochloride | Impurity | CS-T-80090 | 1356447-69-2 | Enquire |
| Hydroxymethionine Dimer impurity | Impurity | CS-O-41200 | 33770-86-4 | Enquire |
| Hydroxymethionine Thio-Thio methyl impurity | Impurity | CS-O-41201 | 192509-56-1 | Enquire |
| L-Methionine [R,S]-Sulfoximine | Impurity | CS-T-57603 | 15985-39-4 | Enquire |
| L-Methionine [R]-Sulfoximine | Impurity | CS-T-57604 | 21752-31-8 | Enquire |
| L-Methionine [S]-Sulfoximine | Impurity | CS-T-57605 | 21752-32-9 | Enquire |
| L-Methionine Allyl Ester Tosylate | Impurity | CS-T-57597 | 142601-87-4 | Enquire |
| L-Methionine Methyl Ester Hydrochloride | Impurity | CS-T-32140 | 2491-18-1 | Enquire |
| L-Methionine Sulfone | Impurity | CS-T-81789 | 7314-32-1 | Enquire |
| L-Methionine tert-Butyl Ester Hydrochloride | Impurity | CS-T-32141 | 91183-71-0 | Enquire |
| L-Methionine-34S | Impurity | CS-T-57599 | 475-25-2 | Enquire |
| L-Methionine-S-methyl Sulfonium Chloride | Impurity | CS-T-32137 | 1115-84-0 | Enquire |
| N-Acetyl Methionine Methyl Ester | Impurity | CS-T-00933 | 7451-74-3 | Enquire |
| N-Boc-D-methionine | Impurity | CS-T-07639 | 5241-66-7 | Enquire |
| N-Boc-L-methionine | Impurity | CS-T-07640 | 2488-15-5 | Enquire |
| Orlistat L-Methionine | Impurity | CS-T-83025 | 1356354-38-5 | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-Fmoc-L-methionine | Intermediate | CS-T-24553 | 71989-28-1 | In Stock |
| Adenosylmethionine decarboxylase | Intermediate | CS-ED-41958 | 9036-20-8 | Enquire |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| DL-Methionine Sulfone | Fine Chemicals | CS-O-54646 | 820-10-0 | Enquire |
| L-Selenomethionine | Fine Chemicals | CS-T-61267 | 3211-76-5 | In Stock |
| Zinc Monomethionine Sulfate | Fine Chemicals | CS-O-16645 | 56329-42-1 | In Stock |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-Acetyl-Nitroso-DL-Methionine | Nitrosamine | CS-O-39971 | Not Available | Enquire |
Secondary Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| L-Methionine | Secondary Standards | CS-SS-24260-1GM | 63-68-3 | Enquire |
| N-Acetyl-D,L-Methionine | Secondary Standards | CS-SS-25445-200MG | 1115-47-5 | Enquire |
| Racemethionine | Secondary Standards | CS-SS-25452-500MG | 59-51-8 | Enquire |
| Selenomethionine | Secondary Standards | CS-SS-25426-200MG | 1464-42-2 | Enquire |
| S-Selenomethionine | Secondary Standards | CS-SS-26046-200MG | 3211-76-5 | Enquire |
Stable Isotope Reagent
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (RS)-S-Adenosyl-L-methionine-d3 (S-methyl-d3 ) Tetra(p-tolue... | Stable Isotope Reagent | CS-C-01657 | Not Available | Enquire |
| D-Methionine-d3-N-FMOC (S-methyl-d3) | Stable Isotope Reagent | CS-C-00183 | 112883-40-6 (Unlabeled) | Enquire |
| L-Methionine-d3 (S-methyl-d3) Methyl-d3-sulfonium Chloride H... | Stable Isotope Reagent | CS-C-00646 | 63889-27-0(Unlabelled) | Enquire |
| DL-Methionine-2-d1 | Stable Isotope Reagent | CS-C-00545 | 67866-74-4 | Enquire |
| D-Methionine D4 | Stable Isotope Reagent | CS-C-00410 | 348-67-4 (Unlabeled) | Enquire |
| D-Methionine-3,3,4,4-d4 | Stable Isotope Reagent | CS-C-01332 | 348-67-4 (Unlabelled) | Enquire |
| L-Methionine D3 | Stable Isotope Reagent | CS-T-57598 | 13010-53-2 | Enquire |
| L-Methionine-13C, D1 | Stable Isotope Reagent | CS-CH-00133 | 1217447-94-3 | Enquire |
| L-Methionine-13C, D2 | Stable Isotope Reagent | CS-CH-00134 | 1240484-64-3 | Enquire |
| L-Methionine-13C, N-Boc | Stable Isotope Reagent | CS-CH-00131 | 286437-20-5 | Enquire |
| L-Methionine-13C5,15N | Stable Isotope Reagent | CS-BX-00255 | 202468-47-1 | Enquire |
| L-Methionine-13CD3 | Stable Isotope Reagent | CS-BE-00072 | 63-68-3 (Unlabeled) | Enquire |
| L-Methionine-15N | Stable Isotope Reagent | CS-CH-00135 | 82572-25-6 | Enquire |
| L-Methionine-15N, N-Fmoc | Stable Isotope Reagent | CS-CH-00136 | 934183-50-3 | Enquire |
| L-Methionine-3,3,4,4-d4 | Stable Isotope Reagent | CS-C-01102 | 67866-75-5 | Enquire |
| L-Methionine-D1 | Stable Isotope Reagent | CS-CH-00138 | 74334-17-1 | Enquire |
| L-Methionine-d3-N-FMOC (S-methyl-d3) | Stable Isotope Reagent | CS-C-01133 | 502692-58-2 | Enquire |
| L-Selenomethionine-(methyl-13C) | Stable Isotope Reagent | CS-BX-00430 | 1217470-45-5 | Enquire |
| N-Acetyl-D-methionine-3,3,4,4-d4 | Stable Isotope Reagent | CS-C-01437 | 1509-92-8(unlabelled) | Enquire |
| N-Acetyl-L-methionine-D3 | Stable Isotope Reagent | CS-C-00345 | 65-82-7(Unlabeled) | Enquire |
| N-Boc-L-Methionine (Methyl-13C) | Stable Isotope Reagent | CS-CH-00139 | 286460-62-6 | Enquire |
"NMR and Deuterated Solvents, Stable Isotopes"
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (±)-Methionine-d4 | "NMR and Deuterated Solvents, Stable Isotopes" | CS-T-82293 | 93709-61-6 | In Stock |
Biochemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| L-Methionine for cell culture, 99%, Endotoxin (BET) 0.05EU/m... | Biochemicals | CS-SR-00522 | 63-68-3 | Enquire |
Building Blocks
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| S-Adenosyl-L-methionine 1,4-butane sulfonate | Building Blocks | CS-T-47451 | 101020-79-5 | Enquire |
| Fmoc-l-beta-homomethionine | Building Blocks | CS-T-77157 | 266359-48-2 | Enquire |
| N-Cbz-L-methionine | Building Blocks | CS-T-10680 | 1152-62-1 | Enquire |