L-Citrulline CAS 372-75-8

Introduction:Basic information about L-Citrulline CAS 372-75-8, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

L-Citrulline Basic information

Product Name:L-Citrulline
Synonyms:Ibuprofen Impurity 78;Arginine Impurity 2(Arginine EP Impurity B)(Citrulline);L-CTRULLINE;L-Citrullne;Arginine EP Impurity B;n5-(aminocarbonyl)-l-ornithin;N5-(aminocarbonyl)-L-Ornithine;ALPHA-AMINO-DELTA-UREIDO-N-VALERIC ACID
CAS:372-75-8
MF:C6H13N3O3
MW:175.19
EINECS:206-759-6
Product Categories:Amino Acids;Citruline [Cit];Amino Acids;Unusual Amino Acids;Biochemistry;non-Proteinorganic Amino Acids;Nutritional Supplements;L-Amino Acids;Aliphatics;Amino Acids & Derivatives;Intermediates & Fine Chemicals;Pharmaceuticals;API;372-75-8
Mol File:372-75-8.mol

L-Citrulline Chemical Properties

Melting point 214 °C
alpha 25.5 º (c=8, 6N HCl)
Boiling point 306.48°C (rough estimate)
density 1.2919 (rough estimate)
refractive index 26 ° (C=8, 6mol/L HCl)
storage temp. Keep in dark place,Sealed in dry,Room Temperature
solubility Aqueous Acid (Sparingly). Water (Slightly)
pka2.43(at 25℃)
form Crystals or Crystalline Powder
color White
OdorOdorless
Optical Rotation+4.025 (H2O) +24.225 (1 mol dm-3 HCl)
Water Solubility 200 g/L (20 ºC)
Merck 14,2331
BRN 6055157
Major Applicationdetection
Cosmetics Ingredients FunctionsSKIN CONDITIONING
InChI1S/C6H13N3O3/c7-4(5(10)11)2-1-3-9-6(8)12/h4H,1-3,7H2,(H,10,11)(H3,8,9,12)/t4-/m0/s1
InChIKeyRHGKLRLOHDJJDR-BYPYZUCNSA-N
SMILESN[C@@H](CCCNC(N)=O)C(O)=O
LogP-3.190
CAS DataBase Reference372-75-8(CAS DataBase Reference)
EPA Substance Registry SystemL-Ornithine, N5-(aminocarbonyl)- (372-75-8)

Safety Information

Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 24/25-36-26
WGK Germany 3
TSCA TSCA listed
HS Code 29241900
Storage Class11 - Combustible Solids

L-Citrulline Usage And Synthesis

Chemical PropertiesWhite powder
OriginatorStaminO2,ErgoPharm
UsesAn amino acid, L-Citrulline can be used in the treatment of asthenia and as an essential intermediate in the biosynthesis of nitric oxide.
UsesL-Citrulline, is used as an essential intermediate in the biosynthesis of nitric oxide from L-arginine . It is also used as a nutritional drink and biochemical reagent.
DefinitionChEBI: L-citrulline is the L-enantiomer of citrulline. It has a role as an EC 1.14.13.39 (nitric oxide synthase) inhibitor, a protective agent, a nutraceutical, a micronutrient, a human metabolite, an Escherichia coli metabolite, a Saccharomyces cerevisiae metabolite and a mouse metabolite. It is an enantiomer of a D-citrulline. It is a tautomer of a L-citrulline zwitterion.
Manufacturing ProcessCitrulline is obtained as a result of a reaction of L-arginine hydrochloride withsodium hydroxide, copper oxide and hydrogen sulfide.
In practice it is usually used as malate salt
Therapeutic FunctionStimulant, Detoxicant
benefitsL-citrulline is used for Alzheimer's disease, dementia, fatigue, muscle weakness, sickle cell disease, erectile dysfunction, high blood pressure, and diabetes. It is used for heart disease, body building, increasing energy, and for improving athletic performance.
Biochem/physiol ActionsL-Citrulline, when orally administered is found to ameliorate the condition of sickle cell disease in humans. L-citrulline can be a replacement for L-arginine administration in case of defective NO synthetase. L-Citrulline supplementation is found to fulfill the purpose of NO-dependent signaling.
targetNO | IL Receptor
Drug interactionsThere are no reported side effects of L-citrulline.
However, the supplement may affect the way certain drugs work in your body. Do not take this supplement if you are taking:
Nitrates for heart disease
ED drugs such as sildenafil (Revatio, Viagra), tadalafil (Cialis), or vardenafil (Levitra, Staxyn)
Combining L-citrulline with those drugs may cause a dangerous drop in blood pressure.
You should also be careful when taking L-citrulline if you take any type of blood pressure medicine.
Do not use L-citrulline if you are pregnant or breastfeeding.
Purification MethodsLikely impurities are arginine and ornithine. Crystallise S-citrulline from water by adding 5 volumes of EtOH. Also crystallise it from water by addition of MeOH. [Ellenbogen J Am Chem Soc 74 5198 1952, Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 pp 2491-2494 1961, Beilstein 4 IV 2647.]
References[1] Patent: WO2009/25829, 2009, A1. Location in patent: Page/Page column 14-15
[2] Chemical communications (Cambridge, England), 2001, # 18, p. 1870 - 1871
[3] Hoppe-Seyler's Zeitschrift fuer Physiologische Chemie, 1931, vol. 203, p. 66
[4] Tohoku Journal of Experimental Medicine, 1941, vol. 41, p. 317
[5] Hoppe-Seyler's Zeitschrift fuer Physiologische Chemie, 1933, vol. 216, p. 244

L-Citrulline Preparation Products And Raw materials

Raw materialsHydroxide-->L(+)-Arginine
Preparation ProductsH-LYS(ALLOC)-OH-->MC-Val-Cit-PAB-->FMoc-Val-Cit-PAB-->FMoc-Val-Cit-PAB-PNP-->Mc-Val-Cit-PABC-PNP
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