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L-Arginine 74-79-3


Product Name: L(+)-Arginine
CAS: 74-79-3
MF: C6H14N4O2
MW: 174.2
EINECS: 200-811-1
Melting point: 222 °C (dec.) (lit.)
Alpha: 27.1 º (c=8, 6N HCl)
Boiling point: 305.18°C (rough estimate)
Density: 1.2297 (rough estimate)
Refractive index: 27 ° (C=8, 6mol/L HCl)
Storage temp: 2-8°C
Solubility H2O: 100 mg/mL
Form: powder
Pka: 1.82, 8.99, 12.5(at 25℃)
Color: white
Water Solubility: 148.7 g/L (20 ºC)
λ: 280 nm Amax: ≤0.1
Merck: 14,780
BRN: 1725413


Product Name L(+)-Arginine
Appearance White Crystalline Powder
Purity 99% min
MW 174.2
Melting point 222 °C (dec.) (lit.)


1. For biochemical research
2. Nutritional supplements; flavoring agents.
3. Amino acid drugs.
4. Used as pharmaceutical raw materials and food additives


The brown glass bottle is hermetically packaged. Store in a dry place below 4°C and avoid light.

Description of necessary first aid measures

If inhaled
If inhaled, move the patient to fresh air. If you stop breathing, give artificial respiration.
In case of skin contact
Rinse with soap and plenty of water.
In case of eye contact
Flush eyes with water as a preventive measure.
If you mistakenly accept
Never feed anything from the mouth to an unconscious person. Rinse your mouth with water.