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L-TYROSINE USP 32

(Vegetable Source)

SPECIFICATIONS

ITEMS	SPECIFICATIONS
Description	White crystalline powder
Identification	Passes Test
Specific Rotation [a]25D	-9.8° to -11.2°
Chlorides	≤ 400 ppm
Sulfates	≤ 400 ppm
Heavy Metals	≤ 15 ppm
Residual Solvents	Per USP 31
Iron	≤ 30 ppm
Ninhydrin-positive substances	TLC
Loss on Drying	0.3 % Max.
Residue on Ignition	0.4 % Max.
Assay	98.5 – 101.5 %
Microbiology:
Total Viable Aerobic Count	≤ 100 CFU/g
Yeast & Mold	≤10 CFU/g Max.
E. Coli	Negative / 10 g
Salmonella	Negative / 10 g
Enterobacteriaceae	Negative / 10 g
Pseudomonas Aeruginosa	Negative / 10 g
Staphylococcus Aureus	Negative / 10 g

(Low Phenylalanine)

ITEMS	SPECIFICATIONS
Description	White or almost white crystalline powder
I.R. Identification	Complies with Reference
Specific Rotation	20°C:  -11.3 to –12.3° 25°C:  -10.0 to –11.0°
Loss on Drying	0.30% Max.
Appearance of Solution	Clear and not more intensely colored than reference solution Y7
Sulfated Ash	0.10% Max.
Heavy Metals	5 ppm Max.
Lead	5 ppm Max.
Iron	10 ppm Max.
Arsenic	1.5 ppm Max.
Chlorides	200 ppm Max.
Sulfates	300 ppm Max.
Ammonium	200 ppm Max.
Phenylalanine	500 ppm Max.
Ninhydrin Positive Substances	0.5% Max.
Assay	99.0 – 101.0%