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L-Phenylalanine

CAS No.: 63-91-2
Molecular formula: C9H11NO2
Molecular weight: 165.19
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Related categories: L-type amino acids; pharmaceutical intermediates; standards; chemical biology; stable isotope-labeled amino acids; protected amino acids; unnatural amino acids; isotope markers; vitamins and amino acids; plant extracts; pharmaceutical raw materials; Intermediate; amino acid derivatives; reagents and supplements; bulk drugs;

63-91-2


Nature

Melting point

270-275 °C (dec.)(lit.)

Specific rotation

-34.1 º (c=2, water, dry basis)

Boiling point

293.03°C (rough estimate)

Density

1.29

Refractive index

-34 ° (C=2, H2O)

FEMA

3585 | L-PHENYLALANINE

Storage conditions

Store at RT.

Solubility

H2O: 0.1 M at 20 °C, clear, colorless

form

powder

Acidity coefficient (pKa)

2.2(at 25℃)

colour

White to off-white

PH value

5.0-7.0 (25℃, 0.1M in H2O)

Water solubility

1-5 g/100 mL at 25 ºC

Merck

14,7271

BRN

1910408

stability

Stable. Incompatible with strong oxidizing agents.

InChIKey

COLNVLDHVKWLRT-QMMMGPOBSA-N

CAS database

63-91-2(CAS DataBase Reference)


Chemical properties

Colorless to white flake crystals or white crystalline powder. Slightly special smell and bitterness. It melts and decomposes at about 283 ° C. The pH of the 10% aqueous solution is 5.4 to 6.0. Stable in heat, light, and air. Coloring with heating with glucose. Unstable under alkaline conditions. Soluble in water (3g / 100ml, 25 ° C). Hard to dissolve in ethanol, dilute mineral acid and alkaline solution. One of the essential amino acids. Its physiological role is related to tyrosine. It can affect thyroid hormones and melanin in hair and skin. The physiological effects of D-type and L-form are the same. Minimum requirement (mg/kg?d): 31 for adult men; 169 for young children.

Uses Nutritional supplements. One of the essential amino acids. Almost no amino acids are found in the proteins of most foods. It can be added to baked foods. In addition to strengthening phenylalanine, it reacts with sugars to form an amino-carbonyl group, which can improve the flavor of food.

It can also be used to formulate amino acid infusions and comprehensive amino acid preparations.


Use

It is used for biochemical research, preparation of culture medium, and medicine for amino acid nutrition. Amino acid drugs. For amino acid infusion, comprehensive amino acid preparations and nutritional supplements. L-phenylalanine is one of the essential amino acids. It is used as a component of nutritional supplements, amino acid infusions and complex amino acid preparations. This product is a raw material for a variety of anticancer drugs and dipeptide sweetness. The main use is for functional food additives


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