Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Serine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Serine 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 Serine-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 Serine-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.
Serine Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| [2H3, 15N]-Cycloserine, tartaric acid | Stable Isotopes | CS-EO-02497 | 1219176-26-7(Free base) | Enquire |
| 2-N,N-Dibenzyl Serine Benzyl Ester-13C3 | Stable Isotopes | CS-T-96978 | Not Available | Enquire |
| DL-Serine-1-13C | Stable Isotopes | CS-T-99839 | 84344-20-7 | Enquire |
| DL-Serine-15N | Stable Isotopes | CS-T-99838 | 31948-88-6 | Enquire |
| DL-Serine-3-13C | Stable Isotopes | CS-T-99840 | 135575-84-7 | Enquire |
| L-3,4-Dihydroxyphenylserine 13C6 | Stable Isotopes | CS-EK-02806 | " 23651-95-8 unlabeled" | Enquire |
| L-Anserine-d4 (N-beta-alanyl-d4) | Stable Isotopes | CS-C-01368 | 1201658-81-2 | Enquire |
| L-O-Phosphoserine-13C3 | Stable Isotopes | CS-T-102566 | Not Available | Enquire |
| L-Serine 2-13C, 2-D | Stable Isotopes | CS-T-96873 | 56-45-1 | Enquire |
| L-Serine-15N | Stable Isotopes | CS-T-102909 | 59935-32-9 | Enquire |
| N-(4-Nitrobenzoyl)-D-serine-d3 Quinine Salt | Stable Isotopes | CS-T-102603 | Not Available | Enquire |
| N-(Benzyloxycarbonyl)serine Benzyl Ester-13C3,15N | Stable Isotopes | CS-T-100783 | Not Available | Enquire |
| N-Fmoc-L-serine-13C3,15N | Stable Isotopes | CS-T-97001 | Not Available | Enquire |
| N-Palmitoyl-O-phosphocholine Serine-D9 | Stable Isotopes | CS-T-95559 | 2517555-53-0(Unlabelled) | Enquire |
| 4-Hydroxy-3-methoxyphenylserine 13C6 | Stable Isotopes | CS-EK-02735 | 28865-97-6 unlabeled | Enquire |
| Cycloserine 13C3 15N | Stable Isotopes | CS-O-10810 | 68-41-7 (Unlabeled) | Enquire |
| Cycloserine 15N D3 | Stable Isotopes | CS-O-02722 | 68-41-7 (Unlabeled) | Enquire |
| DL-Serine-2,3,3 D3 | Stable Isotopes | CS-T-61275 | 70094-78-9 | Enquire |
| DL-threo-β-(3,4-Methylenedioxyphenyl)serine-13C2,15N Acetate... | Stable Isotopes | CS-T-80281 | 1329610-57-2 | Enquire |
| D-Serine-2,3,3-d3 | Stable Isotopes | CS-O-15951 | 1414348-52-9 | Enquire |
| L-3,4-Dihydroxyphenylserine trifluoroacetic salt 13C7 | Stable Isotopes | CS-EK-02812 | 23651-95-8 free base unlabeled | Enquire |
| L-O-Phosphoserine-13C315N | Stable Isotopes | CS-T-95776 | Not Available | Enquire |
| L-SERINE 13C | Stable Isotopes | CS-R-00410 | 81201-84-5 | Enquire |
| L-SERINE 13C3 | Stable Isotopes | CS-R-00411 | 201595-68-8 | Enquire |
| L-SERINE D3 | Stable Isotopes | CS-R-00412 | 105591-10-4 | Enquire |
| L-Serine-2,3-13C2 | Stable Isotopes | CS-T-85433 | 89232-78-0 | Enquire |
| L-Serine-2-13C | Stable Isotopes | CS-T-85558 | 89232-76-8 | Enquire |
| L-Serine-3,3-d2 | Stable Isotopes | CS-T-86030 | 95034-57-4 | Enquire |
| L-Serine-d7 | Stable Isotopes | CS-T-94124 | 935275-35-7 | Enquire |
| N-Acetyl-L-serine D3 | Stable Isotopes | CS-O-15407 | 2230887-17-7 | Enquire |
| N-Arachidonoyl-L-serine-d8 | Stable Isotopes | CS-T-97030 | Not Available | Enquire |
| Phenserine-d5 | Stable Isotopes | CS-T-95311 | Not Available | Enquire |
| rac Cycloserine-15N,d3 | Stable Isotopes | CS-T-94852 | 1219176-26-7 | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Cycloserine | API | CS-O-01140 | 68-41-7 | In Stock |
| Azaserine | API | CS-T-04471 | 115-02-6 | Enquire |
| D,L-Homoserine | API | CS-T-26372 | 1927-25-9 | Enquire |
| D-Homoserine | API | CS-T-78855 | 6027-21-0 | Enquire |
| Eserine hemisulfate salt | API | CS-O-01490 | 64-47-1 | Enquire |
| Mianserine | API | CS-ED-00045 | 24219-97-4 | Enquire |
| rac Cycloserine | API | CS-T-14070 | 68-39-3 | Enquire |
Metabolite
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 4-Hydroxy-3-methoxyphenylserine | Metabolite | CS-EK-02342 | 28865-97-6 | Enquire |
| Butyryl-L-homoserine lactone | Metabolite | CS-CM-00041 | 67605-85-0 | Enquire |
| D-β-Homoserine | Metabolite | CS-M-54810 | 16504-57-7 | Enquire |
| Dodecanoyl-L-homoserine lactone | Metabolite | CS-CM-00079 | 137173-46-7 | Enquire |
| Hexadecanoyl-L-homoserine lactone | Metabolite | CS-CM-00100 | 87206-01-7 | Enquire |
| Hexanoyl-L-homoserine lactone | Metabolite | CS-CM-00101 | 147852-83-3 | Enquire |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (2R,3S)-N-Benzoyl-3-phenyl Isoserine Ethyl Ester | Impurity | CS-T-48736 | 153433-80-8 | In Stock |
| (4-hydroxy-1-methyl-7-phenoxyisoquinoline-3-carbonyl)-L-seri... | Impurity | CS-O-54974 | ---- | Enquire |
| Boc-D-serine Benzylamide | Impurity | CS-O-13685 | 1253790-58-7 | In Stock |
| Caspofungin Serine Analog Diacetate | Impurity | CS-O-33195 | 1202167-57-4 (Freebase) | Enquire |
| Cycloserine Impurity 4 (L-Cycloserine) | Impurity | CS-P-07378 | 339-72-0 | In Stock |
| Docetaxel Related Compound 2 ((2R, 3S)-Boc-3-Phenylisoserine... | Impurity | CS-P-07663 | 145514-62-1 | In Stock |
| L-Threo-(2S,3R)3-(3,4-Dibenzyloxyphenyl) serine | Impurity | CS-EO-00809 | 106887-48-3 | Enquire |
| Micafungin serine analog | Impurity | CS-O-42632 | 1392514-04-3 | Enquire |
| N-Acetyl-O-methylserine | Impurity | CS-O-59634 | 98632-99-6 | Enquire |
| ((S)-2-(2-((2S,4S)-1-(D-Arginyl-D-arginyl-L-prolyl)-4-hydrox... | Impurity | CS-O-40979 | Not Available | Enquire |
| (2R,3S)-N-(2-Nitrobenzenesulfenyl)-3-phenylisoserine methyl ... | Impurity | CS-O-39451 | 615556-29-1 | Enquire |
| (S)-(+)-N-Benzylserine | Impurity | CS-T-06297 | 17136-45-7 | Enquire |
| (S)-Isoserine | Impurity | CS-AC-03042 | 632-13-3 | Enquire |
| (S)-N-Boc-L-homoserine Dicyclohexylammonium Salt | Impurity | CS-T-07577 | 63491-82-7 | Enquire |
| (S)-N-Boc-L-homoserine Ethyl Ester Tosylate | Impurity | CS-T-49513 | 1331892-89-7 | Enquire |
| (S)-N-Boc-L-homoserine Methyl Ester Tosylate | Impurity | CS-T-49512 | 120042-09-3 | Enquire |
| (S)-N-Boc-L-homoserine Triethylammonium Salt | Impurity | CS-T-07578 | 796072-25-8 | Enquire |
| 1,2-Dioleoyl-sn-glycero-3-phospho-L-serine Sodium Sa... | Impurity | CS-T-94215 | 90693-88-2 | Enquire |
| 2-Methyl-DL-serine | Impurity | CS-T-34792 | 5424-29-3 | Enquire |
| Cycloserine Diketopiperazine | Impurity | CS-T-14073 | 1204-99-5 | Enquire |
| Dichloroacetyl-p-aminophenylserine | Impurity | CS-O-43656 | 1421283-62-6 | Enquire |
| DL-erythro-3-(3,4-Dihydroxyphenyl)serine | Impurity | CS-O-32724 | 16322-99-9 | Enquire |
| Docetaxel Related Compound 1 ((2R, 3S)-3-Phenylisoserine Hyd... | Impurity | CS-P-07662 | 136561-53-0 | Enquire |
| L-Anserine Nitrate Salt | Impurity | CS-T-48280 | 10030-52-1 | Enquire |
| L-Homoserine Methyl Ester Hydrochloride | Impurity | CS-T-78535 | 943654-96-4 | Enquire |
| L-Serine -β-Lactone Tosylate | Impurity | CS-T-61276 | 112839-95-9 | Enquire |
| N-(Benzyloxycarbonyl)serine Benzyl Ester | Impurity | CS-T-06087 | 21209-51-8 | Enquire |
| N-acetyl-D-serine | Impurity | CS-P-07379 | 152612-69-6 | Enquire |
| N-Benzyl-L-serine, Methyl Ester | Impurity | CS-T-06298 | 123639-56-5 | Enquire |
| N-Benzyloxycarbonyl-D-serine | Impurity | CS-T-06079 | 6081-61-4 | Enquire |
| N-Fmoc-(2R,3S)-3-phenylisoserine | Impurity | CS-T-76803 | 252206-27-2 | Enquire |
| N-tert-Butoxycarbonyl-L-serine Methyl Ester | Impurity | CS-T-09396 | 2766-43-0 | Enquire |
| O-Benzyl-D-serine | Impurity | CS-T-06299 | 10433-52-0 | Enquire |
| O-Benzyl-L-serine Methyl Ester Hydrochloride | Impurity | CS-T-06301 | 19525-87-2 | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| D-Serine Methyl Ester Hydrochloride | Intermediate | CS-T-42255 | 5874-57-7 | In Stock |
| Fmoc-O-tert-Butyl-D-serine | Intermediate | CS-M-57251 | 128107-47-1 | In Stock |
| L-Serine Ethyl Ester Hydrochloride | Intermediate | CS-DK-00023 | 26348-61-8 | In Stock |
| D,L-Serine Methyl Ester Hydrochloride | Intermediate | CS-O-47699 | 5619-04-05 | Enquire |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| D-Serine | Fine Chemicals | CS-T-42245 | 312-84-5 | In Stock |
| L-Homoserine | Fine Chemicals | CS-T-26373 | 672-15-1 | In Stock |
| L-O-Phosphoserine | Fine Chemicals | CS-T-39855 | 407-41-0 | Enquire |
| L-Serine Methyl Ester Hydrochloride | Fine Chemicals | CS-O-31485 | 5680-80-8 | Enquire |
| O-Acetyl-L-serine | Fine Chemicals | CS-ZH-13907 | 5147-00-2 | Enquire |
| PHOSPHATIDYLSERINE(SOY) | Fine Chemicals | CS-O-38347 | 383908-63-2 | Enquire |
| Phosphoseryl Phosphoserine | Fine Chemicals | CS-T-39857 | 1492-21-3 | Enquire |
Building Blocks
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| DL-Phosphoserine | Building Blocks | CS-O-46250 | 17885-08-4 | Enquire |
| L-serine | Building Blocks | CS-T-42249 | 56-45-1 | In Stock |
| O-(Triphenylmethyl)-L-serine | Building Blocks | CS-O-48910 | 25840-83-9 | Enquire |
| O-Tert-Butyl-L-serine | Building Blocks | CS-DE-01633 | 18822-58-7 | In Stock |
| O-tert-Butyl-L-serine Methyl Ester Hydrochloride | Building Blocks | CS-T-70748 | 17114-97-5 | In Stock |
| (2S,3R)-N-Boc-3-phenyl Isoserine Methyl Ester | Building Blocks | CS-T-67658 | 161759-90-6 | Enquire |
| (R,R) Ditert-butoxy L-Seryl-L-serylglycine | Building Blocks | CS-O-52382 | Not Available | Enquire |
| (R,S) Ditert-butoxy L-Seryl-L-serylglycine | Building Blocks | CS-O-52384 | Not Available | Enquire |
| (S)-N-Boc-L-homoserine Ethyl Ester | Building Blocks | CS-T-07579 | 147325-09-5 | Enquire |
| (S,R) Ditert-butoxy L-Seryl-L-serylglycine | Building Blocks | CS-O-52383 | Not Available | Enquire |
| (S,S) Ditert-butoxy L-Seryl-L-serylglycine | Building Blocks | CS-O-52381 | Not Available | Enquire |
| 2-Di(tert-butyloxycarbonyl)-L-homoserine tert-Butyl Ester | Building Blocks | CS-T-17339 | 945744-04-7 | Enquire |
| a-Methyl-D-serine | Building Blocks | CS-T-34793 | 81132-44-7 | Enquire |
| a-Methyl-L-serine | Building Blocks | CS-T-34794 | 16820-18-1 | Enquire |
| Boc-D-a-methylserine | Building Blocks | CS-M-29866 | 84311-18-2 | Enquire |
| Boc-L-a-methylserine | Building Blocks | CS-M-29867 | 84311-19-3 | Enquire |
| Boc-L-Homoserine | Building Blocks | CS-M-57480 | 41088-86-2 | Enquire |
| Boc-O-benzyl-L-ß-homoserine | Building Blocks | CS-M-30031 | 218943-31-8 | Enquire |
| Boc-O-methyl-L-serine | Building Blocks | CS-M-29861 | 51293-47-1 | Enquire |
| Boc-O-tert-butyl-L-serine | Building Blocks | CS-DV-03499 | 13734-38-8 | Enquire |
| Boc-O-tert-butyl-L-serine dicyclohexylamine salt | Building Blocks | CS-DV-03500 | 18942-50-2 | Enquire |
| Fmoc-L-a-methylserine | Building Blocks | CS-M-29884 | 1217644-25-1 | Enquire |
| Fmoc-O-t-butyl-L-ß-homoserine | Building Blocks | CS-M-30094 | 203854-51-7 | Enquire |
| Fmoc-O-tert-butyl-D-beta-homoserine | Building Blocks | CS-T-77136 | 161529-14-2 | Enquire |
| Glycyl-l-serine | Building Blocks | CS-T-79194 | 7361-43-5 | Enquire |
| N-(1-Deoxy-D-fructos-1-yl)-L-serine | Building Blocks | CS-T-73592 | 34393-26-5 | Enquire |
| N-(9-Fluorenylmethoxycarbonyl)-L-serine Phenacyl Ester | Building Blocks | CS-T-23796 | 125760-26-1 | Enquire |
| N-(9-Fluorenylmethoxycarbonyl)-O-(2,3,6,2',3',4',6'-hepta-O-... | Building Blocks | CS-T-54761 | 169275-84-7 | Enquire |
| N-(Ketocaproyl)-L-homoserine Lactone | Building Blocks | CS-T-56988 | 143537-62-6 | Enquire |
| N-(Methoxycarbonyl)-L-serine Methyl Ester | Building Blocks | CS-T-57649 | 96854-24-9 | Enquire |
| N-[(Phenylmethoxy)carbonyl]-L-serine Methyl Ester | Building Blocks | CS-T-39600 | 1676-81-9 | Enquire |
| N-3-Hydroxydecanoyl-L-homoserine Lactone | Building Blocks | CS-T-27091 | 192883-12-8 | Enquire |
| N-3-oxo-octanoyl-L-Homoserine lactone | Building Blocks | CS-T-78172 | 147795-39-9 | Enquire |
| N-3-Oxo-tetradec-7Z-enoyl-L-homoserine Lactone | Building Blocks | CS-T-78888 | 482598-46-9 | Enquire |
| N-Benzyloxycarbonyl-O-mesyl-L-serine methyl ester | Building Blocks | CS-O-33392 | 132249-34-4 | Enquire |
| N-Boc-L-homoserine methyl ester | Building Blocks | CS-T-68114 | 120042-11-7 | Enquire |
| N-Carbobenzoxy-L-homoserine | Building Blocks | CS-T-50280 | 35677-88-4 | Enquire |
| N-Carboxy-L-serine N-Benzyl Ester | Building Blocks | CS-T-50263 | 1145-80-8 | Enquire |
| N-Fmoc-D-serine | Building Blocks | CS-T-07708 | 116861-26-8 | Enquire |
| N-Fmoc-L-serine | Building Blocks | CS-T-07709 | 73724-45-5 | Enquire |
| N-Fmoc-O-[3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-α-... | Building Blocks | CS-T-55003 | 120173-57-1 | Enquire |
| N-t-Boc-L-serine Allyl Ester | Building Blocks | CS-T-07705 | 143966-57-8 | Enquire |
| O-Acetyl-L-homoserine Hydrochloride, 95% | Building Blocks | CS-T-47272 | 250736-84-6 | Enquire |
| O-Benzyl-a-N-tert-Boc-L-serinehydroxamic Acid | Building Blocks | CS-T-05492 | 26048-92-0 | Enquire |
| O-Benzyl-N-(tert-butoxycarbonyl)-D-serine | Building Blocks | CS-M-29856 | 47173-80-8 | Enquire |
Pesticide Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-Acetyl-DL-Serine | Pesticide Standards | CS-BP-00033 | 97-14-3 | Enquire |