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Name L-Phenylalanine

Molecular formular C9H11NO2

Molecular weight 165.19

CAS No. 63-91-2

面议

Specification

L-Phenylalanine

CP2015

AJI92

USP40

FCCVI

Description

White crystals or crystalline powder

White crystals or crystalline powder

White crystals or crystalline powder

White crystals or crystalline powder

Identification

Conforms

Conform

Conform

Infrared Absorption

Assay

≥98.5%

99.0%100.5%

98.5%~101.5%

98.5%~101.5%

pH

5.4~6.0

5.4~6.0

5.5~7.0

5.4~6.0

Transmittance

≥98.0%

≥98.0%

---

---

Loss on drying

≤0.2%

≤0.20%

≤0.3%

≤0.2%

Residue on ignition

≤0.1%

≤0.10%

≤0.4%

≤0.1%

Chloride

≤0.02%

≤0.020%

≤0.05%

≤0.02%

Heavy Metals

≤10ppm

≤10ppm

≤15ppm

≤15ppm

Lead

---

---

---

≤5 ppm

Iron

≤0.001%

≤10ppm

≤30ppm

---

Sulfate

≤0.02%

≤0.020%

≤0.03%

---

Endotoxin

25EU/g

---

---

---

Arsenic

≤1ppm

≤1ppm

---

≤2ppm

Ammonium

≤0.02%

≤0.02%

---

---

Other amino acids

Conforms

Conforms

Conforms

---

Pyrogen

---

Conforms

---

---

Specific Rotation

-33.5°~ -35.0°

-33.5°~ -35.0°

-32.7°~-34.7°

-33.2°~ -35.2°




Specification


L-Phenylalanine

CP2015

AJI92

USP40

FCCVI

Description

White crystals or crystalline powder

White crystals or crystalline powder

White crystals or crystalline powder

White crystals or crystalline powder

Identification

Conforms

Conform

Conform

Infrared Absorption

Assay

≥98.5%

99.0%100.5%

98.5%~101.5%

98.5%~101.5%

pH

5.4~6.0

5.4~6.0

5.5~7.0

5.4~6.0

Transmittance

≥98.0%

≥98.0%

---

---

Loss on drying

≤0.2%

≤0.20%

≤0.3%

≤0.2%

Residue on ignition

≤0.1%

≤0.10%

≤0.4%

≤0.1%

Chloride

≤0.02%

≤0.020%

≤0.05%

≤0.02%

Heavy Metals

≤10ppm

≤10ppm

≤15ppm

≤15ppm

Lead

---

---

---

≤5 ppm

Iron

≤0.001%

≤10ppm

≤30ppm

---

Sulfate

≤0.02%

≤0.020%

≤0.03%

---

Endotoxin

25EU/g

---

---

---

Arsenic

≤1ppm

≤1ppm

---

≤2ppm

Ammonium

≤0.02%

≤0.02%

---

---

Other amino acids

Conforms

Conforms

Conforms

---

Pyrogen

---

Conforms

---

---

Specific Rotation

-33.5°~ -35.0°

-33.5°~ -35.0°

-32.7°~-34.7°

-33.2°~ -35.2°



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