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

Citrulline Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Citrulline D2 Stable Isotopes CS-CX-00244 1021439-17-7 Enquire
L-Citrulline-[D7] (Solution) Stable Isotopes CS-I-00639 2483831-24-7 Enquire
L-Citrulline-d7 Stable Isotopes CS-T-95455 2483831-24-7 Enquire
L-Homocitrulline-2,6,6-d3 Stable Isotopes CS-O-40094 1190-49-4 (Unlabeled) Enquire
L-Citrulline (1,2,3,4,5-13C5) Stable Isotopes CS-O-35975 955954-27-5 Enquire
L-Citrulline-[D7] Stable Isotopes CS-I-00091 372-75-8(Unlabeled) Enquire
L-Citrulline-d6 Stable Isotopes CS-T-72183 1331908-61-2 Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
DL-Citrulline API CS-O-30577 627-77-0 In Stock
L-Citrulline API CS-T-13040 372-75-8 In Stock
L-Homocitrulline API CS-T-55670 1190-49-4 In Stock
D-Citrulline API CS-T-72132 13594-51-9 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Boc-L-thiocitrulline tert-Butyl Ester Impurity CS-T-07727 133565-49-8 Enquire
S-Methyl-L-thiocitrulline Dihydrochloride Impurity CS-T-35217 156719-39-0 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Citrulline DL-Malate Intermediate CS-T-71947 70796-17-7 In Stock


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Citrulline Secondary Standards CS-SS-25888-500MG 372-75-8 Enquire


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Citrulline-13C5 Stable Isotope Reagent CS-T-103620 372-75-8(unlabelled) Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Fmoc-L-homocitrulline Building Blocks CS-T-74528 201485-17-8 Enquire