Shijiazhuang Shixing Amino Acid Co.,Ltd.

L-PROLINE

[Product Name]: L-PROLINE
[Other Name]: L-PRO, L-2-PYRROLIDINECARBOXYLIC ACID
[Molecular Formula]: C₅H₉NO₂
[Structural Formula]:

[Molecular Weight]: 115.13
[CAS]: 29795-82-2
[Description]: White crystalline powder, slightly odor, slightly sweet, freely soluble in water and in alcohol.
[Standard]: Pharma Grade USP38, Food Grade FCCV or according to buyer's requirements.

Item	Pharma Grade (USP38)	Food Grade (FCCV)
Appearance	White crystalline powder	White crystalline powder
Assay(on dry matter)	98.5~101.5%	98.5~101.5%
Specific rotation	-32.7º~-34.7º	-33.2º~-35.2º
pH	5.4~6.0	5.4~6.0
Loss on drying	NMT 0.3%	0.2% MAX
Residue on ignition	NMT 0.4%	0.1% MAX
Chloride	NMT 0.05%	--
Sulfate	NMT 0.03%	--
Iron	NMT 30ppm	--
Lead	--	5mg/kg MAX
Related compounds	Individual impurities: NMT 0.5% Total impurities: NMT 2.0%	--

Usage: Generally used as a nutritional supplement.
Packing: In fiber drums of 25KG net each or according to buyer’s need.
Transport and Storage: Handle with cares to avoid damaging the package, protect them from sunshine or rain. Don't transport it with poisonous or harmful goods. Stored in shaded, cool and dry places.

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