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Naproxen (USP32)

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  Post Date: Aug 26,2017
  Expiry Date: Aug 26,2018
  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

  CAS Registry Number:

22204-53-1
  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;
  Molecular Formula: C14H13O3
  Molecular Weight: 229.2518
  Molecular Structure: 22204-53-1 Naproxene
  Hazard Symbols:  Xn:Harmful;
  Risk Codes: R22:;
  Safety Description: S36/37:;

  Company: Wuhan Kemi-Works Chemical Co., Ltd     [ China ]          
  Contact: Dr. Allen Zhang
  Tel: 86-27-85736489
  Fax: 86-27-85736485
  Email: sales@kemiworks.com; info@kemiworks.net
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