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Quick Details

  • CAS No.: 88-04-0
  • Other Names: PCMX
  • MF: C8H9ClO
  • EINECS No.: 201-793-8
  • Place of Origin: Zhejiang, China (Mainland)
  • Type: Antibiotic and Antimicrobial Agents
  • Grade Standard: Cosmetic Grade, Food Grade, Medicine Grade, Tech Grade
  • Brand Name: showland
  • Model Number: Top Grade
  • Purity: 99%min
  • Appearance: white or almost white crystal solid

Packaging & Delivery

Packaging Details 25kg/drum
Delivery Time 10DAYS

  4-Chloro-3, 5-dimethylphenol (PCMX). Molecular formula is C8H9ClO, Molecular weight 156.61; Appearance is white or off-white crystalline solid, with slight phenol odor. Melting point 114-116°C. In 20 ° C, 1 gram can be dissolved in 3 liters of water, and dissolved in a portion of 95% alcohol, soluble in ether, benzene, terpenes, olefins, polyethylene glycol, non-volatile oils and alkali hydroxide solution. It is volatile with water vapor and stable in hot water.

Structural formula of 4-Chloro-3,5-dimethylphenol

PCMX is a high efficient, broad-spectrum and safe anti-mildew sterilizing agent. Proven by FDA, it is the best choice for the sterilization of most Gram-positive and negative bacteria, fungi, mold and so on. It is non-toxic and non-irritative.

Form 1:bactericidal activity of PCMX

Gram-positive bacteriaBactericidal concentration /ppmfungiBactericidal concentration /ppm
Staphylococcus aureus10candida albicans50
Bacillus subtilis50saccharomycetes50
Bacillus cereus50mold & saccharomycetes110
fecal streptococcus20torula yeast100
Gram-negative bacteria40aspergillus niger1000
Escherichia coli50Penicillium chrysogenum200
proteus unlgaris100rhizopus nigricane100
bacillus pyocyaneus1000asthma mold1000
Salmonella typhi80milk mould50


      As a disinfectant, PCMX is not only high efficient, but also has high security. In the irritation tests on eyes and skin of rats in the acute dose of LD50> 2g/kg, it shows no the irritation.  It indicates non-sensitive and allergic reactions in the allergy tests with the acute dose of LD50> 3g/kg. Therefore, PCMX is recognized as a low-toxic sterilizing agent, is widely used in personal skin- contacting care products, such as hand-washing liquid, soap, anti-dandruff shampoo and sanitary supplies. The usual dosage in several liquid lotions is: detergent 0.5-1 ‰, antibacterial hand sanitizer 1 ‰, disinfectant 4.5-5 ‰,   can fully meet the needs of bactericidal effect.

        Another important use of PCMX is for preservative used in some medicinal powder, soap, disinfectant care solution, disinfecting sprays, hygiene products; used as plastic preservative of emulsions, cosmetics, ink, glue, polish, paint, plywood and plastics, with good heat resistance and weather resistance. Due to strong persistence in the resin, it is especially suitable for rigid and semi-rigid PVC sheet. It can also be used as preservative of textile, paper making and daily chemicals.


       PCMX has a good stability in the usual storage conditions; after long storage time, its color will become dark, but does not lose activity, which is an important feature for a disinfectant.

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