Naproxen
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Post Date:
Aug 26,2017
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Expiry Date:
Feb 22,2018
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Detailed Description:
Cas No. :22204-53-1
Appearance: White or offer white crystalline powder
Assay: 98.0%～102.0%
Identification:
1) IR Absorption - As per reference standard
2) UV Absorption - Do not differ by more than 3% at 272nm
Loss on drying: 1.0% max.
Specific rotation: -15.3° ～-17.0°
Heavy metals: 0.002% max.
Free naproxen: 1.0% max.
Residual Solvent Acetone: 0.5% max.
Chromatographic purity
1)Any single impurity: 0.5%max.
2)Total impurities: 2.0% max.
Packing: 25kg/ fibre drum
Storage: kept at cool, shadow place
Shelf life: 3 years under proper storage
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CAS Registry Number:
22204-53-1
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Synonyms:
;(S)-(+)-2-(6-Methoxy-2-naphthyl)propionic acid;(+)-6-Methoxy-alpha-methyl-2-naphthaleneacetic acid;Naproxen;(2S)-2-(6-methoxynaphthalen-2-yl)propanoic acid;(2S)-2-(6-methoxynaphthalen-2-yl)propanoate;
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Molecular Formula:
C14H13O3
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Molecular Weight:
229.2518
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Molecular Structure:
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Hazard Symbols:
Xn:Harmful;
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Risk Codes:
R22:;
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Safety Description:
S36/37:;
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