Chlorpheniramine Maleate USP Standard 99%

Chlorpheniramine Maleate USP Standard 99%

Model NO.: 113-92-8
CAS No.: 113-92-8
Assay: 99%
Name: Pharmacy
Role: Bulk Drug/Crude Drug

Product Details

Basic Info

Model NO.: 113-92-8
CAS No.: 113-92-8
Assay: 99%
Name: Pharmacy
Role: Bulk Drug/Crude Drug
Appearance: Pharmaceutical Chemical
Trademark: Dahua
Transport Package: 25kg/Drum
Specification: 1kg/Aluminum foil bag
Origin: China
HS Code: 3001200010

Product Description

This product has a strong competitive ability to block the role of histamine H1 receptor on the allergy target cells. By antagonizing the antagonistic effect of H1 receptor, it also has anti M cholinergic receptor. Therefore, the symptoms of dry mouth, constipation, phlegm thickening and nasal mucous drying can be found after taking medicine. In addition, the drug also has a certain inhibitory effect on the central nervous system, so it can appear drowsiness adverse reactions after taking medicine.
In vivo process
After oral administration and injection, the absorption rate was fast and complete, and the protein binding rate was 72%. The onset time of oral administration was 15~60 minutes, and the peak concentration was 3~6 hours. The onset time of intramuscular injection was 5~10 minutes. The half-life is 12~15 hours and can be maintained for 3~6 hours in vivo. Most of the drug is metabolized by the liver in the body. After 24 hours, it is excreted mostly by the kidneys and excreted by feces and sweat. Lactating women can also be excreted by milk.




White or almost white powder


Meets the requirements

Specific Rotation

-0.10 ~ +0.10°



Heavy Metals


Redidue in Ignition


Related Substances

Meets the requirements

Benzene Sulfonic Acid

27.3 ~ 28.7%






Acetic Acid




Ethyl Benzene Sulfonate


Particle Size

Meets the requirements


98.0 ~102.0%