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

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Acetyl-d3-L-threonine-2,3-d2 Stable Isotopes CS-T-94745 17093-74-2(Unlabelled) Enquire
L-Threonine 13C Stable Isotopes CS-T-62037 81202-08-6 Enquire
L-Threonine-2,3-D2 Stable Isotopes CS-T-94123 1202936-45-5 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Threonine Benzyl Ester Hemioxalate Impurity CS-T-86897 86088-59-7 Enquire
N-Boc-L-threonine Impurity CS-T-07724 2592-18-9 Enquire
N-Fmoc-L-threonine Allyl Ester Impurity CS-T-24589 136523-92-7 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
DL-Threonine Fine Chemicals CS-DA-00247 80-68-2 In Stock
L-threonine Fine Chemicals CS-T-44290 72-19-5 In Stock
DL-Threonine Fine Chemicals CS-G-00138 28954-12-3 Enquire
L-Threonine ethyl ester hydrochloride Fine Chemicals CS-DB-00103 39994-70-2 Enquire
O-Methyl-L-threonine Fine Chemicals CS-O-40686 4144-02-9 Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Threonine Secondary Standards CS-SS-24261-500MG 72-19-5 Enquire


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Threonine-d5 Stable Isotope Reagent CS-CH-00169 1217456-38-6 In Stock
L-Threonine-13C2 Stable Isotope Reagent CS-CH-00164 1217476-30-6 Enquire
L-Threonine-13C4 Stable Isotope Reagent CS-CH-00166 55443-53-3 Enquire
L-Threonine-13C4-(Bzl),15N, N-Boc Stable Isotope Reagent CS-CH-00165 1217463-23-4 Enquire
L-Threonine-13C4,15N Stable Isotope Reagent CS-CH-00167 202468-39-1 Enquire
L-Threonine-15N Stable Isotope Reagent CS-CH-00168 252743-41-2 Enquire


Biochemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
DL-Threonine CHR, 99% Biochemicals CS-SR-00455 80-68-2 Enquire
L-Threonine CHR, 99% Biochemicals CS-SR-00456 72-19-5 Enquire
L-Threonine for cell culture, 99% Biochemicals CS-SR-00557 72-19-5 Enquire
L-Threonine for tissue culture, 99% Biochemicals CS-SR-00457 72-19-5 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Fmoc-L-Threonine Building Blocks CS-M-57887 73731-37-0 In Stock
L-a-Glutamyl-L-alanyl-L-valyl-L-seryl-L-leucyl-L-lysyl-L-pro... Building Blocks CS-T-78644 182683-50-7 Enquire
N-(1-Deoxy-D-fructos-1-yl)-L-threonine Building Blocks CS-T-73706 70954-04-0 Enquire
N-Fmoc-O-[2-acetamido-2-deoxy-a-D-galactopyranosyl]-L-threon... Building Blocks CS-T-54997 301843-65-2 Enquire
N-Fmoc-O-[3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-α-... Building Blocks CS-T-55004 116783-35-8 Enquire


Carbohydrates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
O-α-D-mannopyranosyl-L-threonine Carbohydrates CS-OC-00242 Not Available Enquire