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
4-Chloro-3,5-dimethylphenol (PCMX) CAS 88-04-0: Ultimate Guide
Table of Contents
- Product Overview
- Technical Specifications & Comparison
- Key Applications
- Usage Guidelines
- Industry Case Studies
- Request Sample/Quote
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
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Tel: (86) 15866781826
Available Services:
– Custom formulation development
– Regulatory compliance support
– Bulk quantity discounts (MOQ: 100kg)



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