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Diphenhydramine HCl
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Diphenhydramine HCl

  • Product Name : Diphenhydramine HCl
  • Grade : IP / BP / USP
  • Therapeutic Category : Antihistamine
  • CAS No : 147-24-0
  • Other Name : Diphenhydramine
  • COA : Available
  • MSDS : Available


Diphenhydramine is an antihistamine mainly used to treat allergies. It is also used for insomnia, symptoms of the common cold, tremor in parkinsonism, and nausea. It is used by mouth, injection into a vein, and injection into a muscle. Maximal effect is typically around two hours after a dose and effects can last for up to seven hours.







White or almost white crystalline powder


Very soluble in water, freely soluble in alcohol



IR: conform with the reference.

The chlorides reaction

Appearance of solution

Clear: ≤BY6

Acidity or alkalinity

≤0.5ml of 0.01M NaOH

Related substances

Impurity A≤0.5%

Any other impurity ≤0.3%

Total impurities≤1.0%

Loss on drying


Sulphated ash



99.0~101.0% (on dried basis)


Packaging details:


Packaging details:

25kg/drum with double plastic bags inside; packed in a cardboard drum or fiber HDPE drum.


Stored in a clean, cool, dry area; keep away from moisture and strong, direct light/heat

Shelf Life:

5 years if sealed and store away from direct sun light.

Additional Information

The most common markets for this product include the following countries. Please inquire with us if your country or region is not listed:

Asia: Afghanistan, Israel, Jordan, Pakistan, Russia, Saudi Arabia, Singapore, Syria, Philippines, Turkey, Turkmenistan, Uzbekistan, Yemen, Vietnam, Indonesia, Malaysia, Iran, Tajikistan, etc.

Africa: South Africa, Uganda, Nigeria, Ghana, Kenya, Mauritius, Botswana, Egypt, Ethiopia, Libya, Sudan, Congo, Gambia, Ivory Coast , etc.

North & South America: USA, Canada, Panama, Trinidad and Tobago, Costa Rica, Puerto Rico, Dominican Republic, Argentina, Guatemala, Guyana, Peru, Bolivia, Venezuela , Brazil, Bahamas, Ecuador, etc .

Europe: Austria , Azerbaijan, Belarus, Belgium, Cyprus, Czech Republic, Denmark, France, Georgia, Germany, Hungary, Ireland, Iceland, Netherlands, Norway, Poland, Spain, Sweden, Switzerland, Ukraine, United Kingdom (UK) , Latvia, etc.

OCEANIA: Australia, New Zealand, Fiji, etc.