4-Chloro-3,5-dimethylphenol PCMX CAS 88-04-0

Chemical Name: 4-Chloro-3,5-dimethylphenol/PCMX
Synonyms: 4-Chloro-3,5-xylenol; p-Chloro-m-xylenol; 2-Chloro-m-xylenol; 4-Chloro-1-hydroxy-3,5-dimethylbenzene
CAS No.: 88-04-0
Molecular Fomula: C8H9OCl
Molecular weight: 156.5
Appearance: White crystal powder

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4-Chloro-3,5-dimethylphenol (PCMX) CAS 88-04-0: Ultimate Guide

Table of Contents

Product Overview

Parameter Specification
CAS Number 88-04-0
Molecular Formula C8H9ClO
Appearance White to off-white crystalline powder
Purity ≥99%
Melting Point 114-116°C
Solubility Soluble in ethanol, ether; slightly soluble in water

Technical Comparison

Feature PCMX Triclosan Phenol
Antimicrobial Spectrum Broad-spectrum Narrow Moderate
pH Stability 2-10 6-8 4-7
Skin Irritation Low Moderate High
Environmental Impact Biodegradable Persistent Toxic

Key Applications

1. Disinfectants & Sanitizers

• Hospital-grade surface disinfectants
• Hand sanitizer formulations (0.3%-2% concentration)
• Veterinary equipment sterilization

2. Cosmetic Preservation

• Effective in shampoos at 0.1%-0.5%
• Cream/lotion preservation against Gram+/Gram- bacteria
• pH-stable in formulations 3-9

3. Industrial Biocides

• Cooling water treatment
• Paint/polymer preservation
• Textile antimicrobial finishing

Usage Guidelines

Recommended Concentrations

Application Concentration Contact Time
Surface Disinfection 2% 10 min
Hand Wash 0.5% 30 sec
Cosmetic Preservation 0.2% N/A

Safety Protocols

• Use PPE when handling concentrate
• Store at 15-25°C in sealed containers
• Incompatible with strong oxidizers

Industry Case Studies

Case 1: Pharmaceutical Manufacturer (Germany)

Challenge: Microbial contamination in production areas
Solution: 1.8% PCMX-based disinfectant
Result: 99.99% pathogen reduction, compliant with EU GMP standards

Case 2: Personal Care Brand (USA)

Challenge: Preservative efficacy in natural shampoo
Solution: 0.3% PCMX + organic acids
Result: 24-month shelf life, ECOCERT approval

Case 3: Medical Device Co. (China)

Challenge: Sterilization of heat-sensitive components
Solution: Alcohol-free PCMX solution (1.2%)
Result: Meets ISO 13485 requirements, 60% cost reduction

Request Sample/Technical Consultation

Email: info@vivalr.com
Tel: (86) 15866781826
Available Services:
– Custom formulation development
– Regulatory compliance support
– Bulk quantity discounts (MOQ: 100kg)

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