L-Citrulline
CAS 372-75-8 C6H13N3O3
- CAS number
- 372-75-8
- EC number
- 206-759-6
- Formula
- C6H13N3O3
- Molar mass
- 175.19 g/mol
Supply of L-Citrulline
- Grades
- Food and supplement grade and pharmacopoeial (USP) grade as the free amino acid, plus L-citrulline DL-malate blends in the 2:1 and 1:1 ratios used in sports nutrition.
- Packaging
- 25 kg fibre drums or cartons with PE liner · Smaller foil packs on request
- Documents
- CoA, SDS and TDS on request; certificate of origin where the destination requires it.
- Delivery
- Worldwide, including the United States, Canada, the United Kingdom, Germany and the rest of the EU, the United Arab Emirates, India, Singapore, Malaysia and Australia. Quoted EXW, FOB, CIF or DAP.
L-Citrulline is an amino acid first found in watermelon. The body converts it into arginine, and taken by mouth it raises arginine levels more effectively than arginine itself. It is mainly sold in sports supplements, often as citrulline malate, and is also used in medical nutrition.
Technical details
L-Citrulline takes its name from the watermelon, Citrullus, whose juice it was first isolated from. It is an amino acid the body does not build into proteins: it is an intermediate of the urea cycle, and the kidneys convert it into L-arginine. This is the basis of its use in supplements. Taken by mouth, arginine is largely broken down in the gut and liver before it reaches the bloodstream, while citrulline passes through and is converted afterwards, which is why published studies find oral citrulline raises plasma arginine more effectively than arginine itself. Ehlinar supplies pure L-citrulline and citrulline malate blends.
Appearance: White crystalline powder, odourless; soluble in water.
Applications
How we supply
- Certificate of Analysis (CoA), lot-specific where available
- Safety Data Sheet (SDS / MSDS)
- Technical Data Sheet (TDS)
- Certificate of Origin / Certificate of Conformity
Independent third-party inspection can be arranged on request, with the agency and scope agreed per trade. Representative samples can be requested for qualification, subject to supplier availability. We recommend incoming quality control against the agreed CoA.
Quoted on standard Incoterms (e.g. EXW, FOB, CIF, DAP) as agreed per trade. Delivery region, packaging and grade are confirmed per quote.
Documents and services above are subject to supplier availability and confirmed per quote; nothing here is an offer.
Typical / indicative values — not a binding specification
| Property | Typical |
|---|---|
| Water solubility | Soluble |
| Citrulline content, 2:1 malate blend | ~67% by weight |
Also known as
L-Cit · (S)-2-amino-5-ureidopentanoic acid · Citrulline · L-Citrulline DL-malate (blend)
Frequently asked questions
- Citrulline or citrulline malate?
- Pure L-citrulline gives you the amino acid alone. Citrulline malate blends it with DL-malic acid, usually 2:1 or 1:1 by weight, so a gram of a 2:1 blend contains about two-thirds of a gram of citrulline. Compare products on their citrulline content, not on the blend weight.
- Why use citrulline instead of arginine?
- Because more of it arrives. Oral arginine is largely broken down by the enzyme arginase in the gut and liver, while citrulline passes through and is converted to arginine in the kidneys. Published human studies report a larger rise in plasma arginine from citrulline than from the same dose of arginine.
- Is L-citrulline kosher, halal or vegan?
- It is produced by fermentation, non-animal, and commonly certified. Ask for the certificate against the specific lot.
- How is it stored?
- Cool, dry and sealed.
Enquire about L-Citrulline
Related products
Figures and identifiers here are compiled from public references and provided for general information; they are indicative, not a specification. See all products.