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Quick Details

  • CAS No.: 125-69-9
  • Other Names: dxm powder
  • MF: C18H25NO.HBr
  • Place of Origin: China (Mainland)
  • Type: Respiratory System Agents
  • Grade Standard: Medicine Grade
  • Brand Name: NOVACHEM
  • Model Number: USP,BP, JP
  • Purity: 99.0% MIN
  • appearance: white crystalline powder
  • Smell: a faint odour
  • other name: powder dxm

Packaging & Delivery

Packaging Details 25g-100g/bags; 1kg/bag/carton; 5kg/drum; 25kg/drum
Delivery Time within 1-2 weeks after receive the payment


Dextromethorphan Hydrobromide dxm powder
1.White fine powder
2.CAS No.:125-69-9

4.Molecular Weight:352.36

5.Molecular Formula:C18H25NOBrh






Practically white crystals or crystalline powder having a faint odour.


Sparingly soluble in water, freely soluble in alcohol and in chloroform and insoluble in ether.

Identification by

a. IR

The infrared absorption spectrum of finely ground sample in potassium bromide dispersion compressed into a pellet, exhibits maxima only at the same wave lengths as that of a similar preparation of the corresponding Dextromethorphan HBr WS

b. UV absorption

Absorbtivity at 278nm of sample (100μg/ml(on anhydrous basis)solution in 0.1N hydrochloric acid) do not differ from a similar preparation of Dextromethorphan Hydrobromide WS by more than 3.0%

c. With silver Nitrate TS

A yellowish wihte precipitate formed when 5 drops of 2N nitric acid and 2ml of silver nitrate TS are added to 5ml of sample solution.

Melting point

Melts at about 126°C with decomposition.

Specific optical rotation at 25°

The specific rotation of the sample at 325nm do (on anhydrous basis) not differ from a similar preparation of (C=1,8 in water) Dextromethorphan hydrobromic WS, by more than 1.0%

Ph (1 in 100)

Between 5.20 and 6.50

Water by KF

Between 3.5and 5.5% w/w

Residue on ignition

Not more than 0.1% w/w

Limit of N,N-dimethylaniline

Not more than 0.001%

Limit of phenolic compounds

No blue-green colour develops

Assay (on anhydrous basis)

Not less than 98.0% and

Not less than 102.0% w/w


  • 1kg/tin
  • 25kg/drum



  • Samples: 1week
  • Commercial qty: 1-2weeks after getting payment



  • Samples: Small sample for quality approval is Free of Charge but the courier charge is required. 
  • Commercial qty:
  1. Shipments by air: 50% T/T in advance after placing orders, 50% before delivery;
  2. Shipments by sea: 50% T/T in advance after placing orders, 50% against copy documents. 



  • Shelf life: 2 years
  • If any quality issues, it should be claimed within 3 weeks from the date when goods arrive at destination. Refunds will be given or the goods will be replaced by qualified material. All charges involved are on NOVACHEM's account. 







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