Myristyl-Gamma-Picolinium Chloride

Pharma Grade

CAS #:


Molecular Formula:



4-Methyl-1-tetradecylpyridinium Chloride, 1-Tetradecyl-4-picolinium chloride, MPC- Miripirium chloride, Quatresin, Wet- Tone B

Molecular Weight:

326.02 g/mol


Myristyl-gamma-picolinium chloride (MGP) is a novel constituent of methylprednisolone acetate suspensions used for intra-articular corticosteroid therapy.

Characters Unit Specification
Appearance Off white to pale orange, pink solid
Solubility Soluble in ACN
Identification By NMR
Identification - IR Conforms to Structure
Identification - Chlorides current USP and supplements <191>
Use 20 mg sample in 2 ml of water USP 40 NF 35
Respond to Identification
Test for Chloride
Residue on ignition current USP and supplements <281> USP 40 NF 36 Conforms
Residual Solvents Ethyl Acetate: ≤5000 ppm
Acetone: ≤5000 ppm
Water by KF % ≤10.0%
Purity by HPLC % ≥98%
Assay (as - is) % 90 - 100%
Use 0.1% w/v
Solution in WFI
3.5 - 7.0
Assay (on anhydrous basis) % 98.0 - 102.0%
Related substances by HPLC (Total Impurities) % ≤1.0%
Chloride content (on anhydrous basis) % 10.0 - 11.8%

Storage/Shipping Conditions:

  • Store in a tightly closed container.
  • Store in a cool, dry, well- ventilated area away from incompatible substances.

Pack Sizes: 25 gm

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