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

Glutamine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Glutamine-5-13C Hydrochloride Stable Isotopes CS-T-96948 Not Available Enquire
N2-Lauroyl-L-glutamine-d23 Stable Isotopes CS-T-96909 1795786-88-7 Enquire
[3-13C]-L-Glutamine Stable Isotopes CS-EK-00882 180991-03-1 Enquire
L-[4-13C]-Glutamine Stable Isotopes CS-EK-01863 180991-04-2 Enquire
L-GLUTAMINE 15N2 Stable Isotopes CS-R-00404 204451-48-9 Enquire
L-Glutamine-13C5 Stable Isotopes CS-T-79443 184161-19-1 Enquire
L-Glutamine-amide 15N Stable Isotopes CS-T-55368 59681-32-2 Enquire
Phenylacetyl-d5 L-Glutamine Stable Isotopes CS-T-60346 1331909-01-3 Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
D-Glutamine API CS-T-55374 5959-95-5 Enquire
L-Homoglutamine API CS-T-26359 7433-32-1 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(tert-Butoxycarbonyl)-DL-glutamine Impurity CS-O-47521 85535-45-1 Enquire
L-alanyl-L-glutamyl-L-alanyl-L-glutamine Impurity CS-O-60313 1402135-14-1 Enquire
L-Glutamine Diethylamide Hydrochloride Impurity CS-O-57185 77529-90-9 Enquire
N-Phenylacetyl-L-Glutamine Impurity CS-O-01987 28047-15-6 In Stock
Alanyl Glutamine Impurity 18 HCl Impurity CS-P-08594 Not Available Enquire
D-Glutamine Methyl Ester Hydrochloride Impurity CS-T-78615 74817-54-2 Enquire
D-Glutamine tert-Butyl Ester Hydrochloride Impurity CS-T-79489 422324-35-4 Enquire
DL-erythro-4-Fluoroglutamine Impurity CS-T-24035 238418-67-2 Enquire
DL-threo-4-Fluoroglutamine Impurity CS-T-24036 238418-69-4 Enquire
N2,N6-Bis(benzyloxycarbonyl)-L-homoglutamine Impurity CS-T-06717 88462-80-0 Enquire
N2-Boc-D-glutamine Impurity CS-T-68375 61348-28-5 Enquire
N2-Decanoyl-L-glutamine Impurity CS-T-14586 26060-95-7 Enquire
N2-Lauroyl-L-glutamine Impurity CS-T-30924 109570-04-9 Enquire
N-Acetyl-D-Glutamine Impurity CS-P-01387 Not Available Enquire
N-Acetyl-L-isoglutamine Impurity CS-T-00891 25460-87-1 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-Phenylacetamide Fine Chemicals CS-M-41951 103-81-1 In Stock
L-Glutamine Fine Chemicals CS-T-25454 56-85-9 In Stock
DL-Glutamine Fine Chemicals CS-DE-01467 6899-04-3 Enquire
L-glutamine diethylamide Fine Chemicals CS-O-40778 Not Available Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Alanyl-L-glutamine Secondary Standards CS-SS-25314-300MG 39537-23-0 Enquire
L-Glutamine Secondary Standards CS-SS-24169-1GM 56-85-9 Enquire


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Glutamine-¹⁵N Stable Isotope Reagent CS-T-103434 80143-57-3 Enquire
L-Glutamine-2,3,3,4,4-d5 Stable Isotope Reagent CS-P-01025 14341-78-7 Enquire
L-Glutamine-13C Stable Isotope Reagent CS-T-95730 159680-32-7 Enquire
L-Glutamine-13C5, 15N2, D10 Stable Isotope Reagent CS-CH-00089 1217443-24-7 Enquire
L-Glutamine-13C5,15N2 Stable Isotope Reagent CS-CH-00091 285978-14-5 Enquire
L-Glutamine-13C5,15N2(Trt), N-Fmoc Stable Isotope Reagent CS-CH-00090 1217462-20-8 Enquire
L-Glutamine-13C-Amine-15N Stable Isotope Reagent CS-CH-00094 1217467-74-7 Enquire
L-Glutamine-15N2, D10 Stable Isotope Reagent CS-CH-00092 Not Available Enquire
L-Glutamine-15N2, N-Boc Stable Isotope Reagent CS-CH-00093 1217466-89-1 Enquire
L-Glutamine-2,3,3,4,4-d5 Stable Isotope Reagent CS-BX-01031 Not Available Enquire
L-Glutamine-5-13C,15N Hydrochloride Stable Isotope Reagent CS-T-95729 494783-18-5(Free base) Enquire
Nα-Acetyl-DL-Glutamine-2,3,3,4,4-d5 Stable Isotope Reagent CS-C-01430 14341-82-3 Enquire


Peptide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Isoleucyl-L-glutamine Peptide CS-O-56866 59652-60-7 Enquire
Pyr-Gln-OH Peptide CS-O-55069 109481-23-4 Enquire


Biochemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
D-Glutamine 99% Biochemicals CS-SR-00315 5959-95-5 Enquire
DMEM High Glucose (4.5 g/l), with L-Glutamine, with Sodium P... Biochemicals CS-SR-00661 --- Enquire
DMEM/Ham’s F-12 (DMEM/F-12), with L-Glutamine Biochemicals CS-SR-00657-500ML Not Available Enquire
L-Glutamine CHR, 99% Biochemicals CS-SR-00316 56-85-9 Enquire
L-Glutamine for cell culture, 99%, Endotoxin (BET) 0.05EU/mg Biochemicals CS-SR-00501 56-85-9 Enquire
Medium 199 with Earle's Salts, with L-Glutamine Biochemicals CS-SR-00651-50Ltr Not Available Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Alanyl -L-Glutamine Building Blocks CS-O-30632 39537-23-0 In Stock
L-Isoglutamine Building Blocks CS-T-79093 636-65-7 Enquire
D,L-Homoglutamine Building Blocks CS-T-26358 34218-76-3 Enquire
Glycylglycyl-L-glutamine Building Blocks CS-T-55448 186787-32-6 Enquire
N-(tert-Butoxycarbonyl)-L-glutamine methyl ester Building Blocks CS-T-09289 4976-88-9 Enquire
N2-[(Phenylmethoxy)carbonyl]-L-glutamine Building Blocks CS-T-39616 2650-64-8 Enquire
N2-Benzyloxycarbonyl-L-homoglutamine Building Blocks CS-T-05971 83793-19-5 Enquire
N2-Cbz-D-glutamine Building Blocks CS-T-10674 13139-52-1 Enquire
N-beta-Fmoc-L-beta-glutamine Building Blocks CS-T-77413 283160-18-9 Enquire