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

L-serine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
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-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-Fmoc-L-serine-13C3,15N Stable Isotopes CS-T-97001 Not Available Enquire
DL-Serine-2,3,3 D3 Stable Isotopes CS-T-61275 70094-78-9 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


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(4-hydroxy-1-methyl-7-phenoxyisoquinoline-3-carbonyl)-L-seri... Impurity CS-O-54974 ---- Enquire
((S)-2-(2-((2S,4S)-1-(D-Arginyl-D-arginyl-L-prolyl)-4-hydrox... Impurity CS-O-40979 Not Available Enquire
2-Methyl-DL-serine Impurity CS-T-34792 5424-29-3 Enquire
L-Serine -β-Lactone Tosylate Impurity CS-T-61276 112839-95-9 Enquire
N-Benzyl-L-serine, Methyl Ester Impurity CS-T-06298 123639-56-5 Enquire
N-tert-Butoxycarbonyl-L-serine Methyl Ester Impurity CS-T-09396 2766-43-0 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
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
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


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Serine Secondary Standards CS-SS-24149-1GM 56-45-1 Enquire


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Serine-3-13C Stable Isotope Reagent CS-T-103545 89232-77-9 Enquire
Phospho-L-serine 13C3 15N Stable Isotope Reagent CS-O-52701 2734706-69-3 Enquire
L-Serine 13C3,15N Stable Isotope Reagent CS-T-61277 202407-34-9 Enquire
L-Serine-15N-N-FMOC Stable Isotope Reagent CS-C-01447 2137490-19-6 Enquire
L-Serine-2,3,3-d3-N-FMOC Stable Isotope Reagent CS-C-01132 1380308-48-4 Enquire
L-Serine-2,3,3-d3-N-t-BOC Stable Isotope Reagent CS-C-01131 3262-72-4 (Unlabelled) Enquire


Biochemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
DL-Serine CHR, 99% Biochemicals CS-SR-00152 302-84-1 Enquire
L-Serine CHR, 99% Biochemicals CS-SR-00153 56-45-1 Enquire
L-Serine for cell culture, 99% Biochemicals CS-SR-00549 56-45-1 Enquire
L-Serine for tissue culture, 99% Biochemicals CS-SR-00154 56-45-1 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
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
a-Methyl-L-serine Building Blocks CS-T-34794 16820-18-1 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
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-(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-Benzyloxycarbonyl-O-mesyl-L-serine methyl ester Building Blocks CS-O-33392 132249-34-4 Enquire
N-Carboxy-L-serine N-Benzyl Ester Building Blocks CS-T-50263 1145-80-8 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-Benzyl-a-N-tert-Boc-L-serinehydroxamic Acid Building Blocks CS-T-05492 26048-92-0 Enquire


Carbohydrates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
O-(2-Acetamido-2-deoxy-3,4,6-tri-O-acetyl-ß-D-glucopyranosyl... Carbohydrates CS-T-46967 160067-63-0 Enquire


Peptide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-[(Phenylmethoxy)carbonyl]-L-serine ethyl ester Peptide CS-O-41253 28270-55-5 Enquire


Pesticide Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Acetyl-DL-Serine Pesticide Standards CS-BP-00033 97-14-3 Enquire