| Identification | More | 【Name】
L-Tryptophan | 【CAS】
73-22-3 | 【Synonyms】
2-AMINO-3-(1H-INDOL-3-YL)PROPANOIC ACID
2-AMINO-3-(1H-INDOL-3-YL)-PROPIONIC ACID
(+/-)-2-AMINO-3-(3-INDOLYL)PROPIONIC ACID
3-(3-INDOLYL)-DL-ALANINE
3-(3-INDOLYL)-L-ALANINE
3BETA-INDOLYLALANINE
[+/-]-ALPHA-AMINO-3-INDOLEPROPIONIC ACID
DL-2-AMINO-3-(3-INDOLYL)PROPIONIC ACID
DL-2-AMINO-3-INDOLEPROPIONIC ACID
DL-2-AMINO-3-INDOLYLPROPANOIC ACID
DL-3BETA-INDOLYLALANINE
DL-A-AMINO-3-INDOLEPROPIONIC ACID
DL-ALPHA-AMINO-3-INDOLEPROPIONIC ACID
DL-B-3-INDOLYLALANINE
DL-TRYPTOPHAN
DL-TRYPTOPHANE
H-DL-TRP-OH
H-L-TRP-OH
H-TRP-OH
Indole-3-alanine | 【EINECS(EC#)】
200-795-6 | 【Molecular Formula】
C11H12N2O2 | 【MDL Number】
MFCD00064340 | 【Molecular Weight】
204.23 | 【MOL File】
73-22-3.mol |
| Chemical Properties | Back Directory | 【Appearance】
White to off-white crystalline powder | 【mp 】
289-290 °C (dec.)(lit.)
| 【alpha 】
-31.1 º (c=1, H20) | 【density 】
1.34 | 【refractive index 】
-32 ° (C=1, H2O) | 【storage temp. 】
Store at RT. | 【solubility 】
20% NH3: 0.1 g/mL at 20 °C, clear, colorless
| 【form 】
powder
| 【Stability:】
Stable. Incompatible with strong acids, strong oxidizing agents. | 【Water Solubility 】
11.4 g/L (25 ºC) | 【Merck 】
14,9797 | 【BRN 】
86197 | 【CAS DataBase Reference】
73-22-3(CAS DataBase Reference) | 【NIST Chemistry Reference】
L-Tryptophan(73-22-3) | 【EPA Substance Registry System】
73-22-3(EPA Substance) |
| Safety Data | Back Directory | 【Hazard Codes 】
Xi | 【Risk Statements 】
R33:Danger of cumulative effects.
R40:Limited evidence of a carcinogenic effect.
R62:Possible risk of impaired fertility.
R41:Risk of serious damage to eyes.
R37/38:Irritating to respiratory system and skin .
R36/37/38:Irritating to eyes, respiratory system and skin .
R22:Harmful if swallowed. | 【Safety Statements 】
S24/25:Avoid contact with skin and eyes .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | 【WGK Germany 】
2
| 【RTECS 】
YN6130000
| 【F 】
8 | 【HS Code 】
29339990 | 【Hazardous Substances Data】
73-22-3(Hazardous Substances Data) |
| Hazard Information | Back Directory | 【General Description】
White powder with a flat taste. An essential amino acid; occurs in isomeric forms. | 【Reactivity Profile】
Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides. | 【Air & Water Reactions】
Slightly soluble in water. | 【Health Hazard】
ACUTE/CHRONIC HAZARDS: When heated to decomposition this compound emits toxic fumes. | 【Fire Hazard】
Flash point data for this chemical are not available. L-TRYPTOPHAN(73-22-3) is probably combustible. |
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