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Shandong Do Sender Chemicals Co.,Ltd.
- Refrigerants
- Second-generation
- Third-generation
- Blended refrigerant
- Fourth-generation
- UV Series
- UV absorber
- Light stabilizers
- Melanin
- …
- Refrigerants
- Second-generation
- Third-generation
- Blended refrigerant
- Fourth-generation
- UV Series
- UV absorber
- Light stabilizers
- Melanin

Product Overview: 4-Chloro-3,5-dimethylphenol (CAS 88-04-0)
4-Chloro-3,5-dimethylphenol (commonly known as Chloroxylenol or PCMX) is a broad-spectrum antimicrobial agent belonging to the halophenol class. It appears as a white to off-white crystalline powder with a characteristic phenolic odor . It is the active ingredient in antiseptic formulations like Dettol and is included in the WHO Model List of Essential Medicines . PCMX is effective against a wide range of Gram-positive and Gram-negative bacteria, fungi, and molds, making it one of the most widely used antiseptics in pharmaceutical, personal care, and industrial applications
Property Typical Value
Appearance (23°C) Red to brown liquid with pungent odor
Purity (HPLC) ≥95% (technical grade)
Molecular Formula C₉H₆N₂S₃
Molecular Weight 238.34 – 238.36 g/mol
Density (25°C) 1.05 (c = 0.30)
Flash Point (open cup) 66°C
Log Kow (Octanol-Water) 3.30 (experimental)
Solubility & Compatibility Profile
Parameter Details
IUPAC Name 1,3-benzothiazol-2-ylsulfanylmethyl thiocyanate
Synonyms TCMTB, 2-(Thiocyanomethylthio)benzothiazole, Busan,
Benthiazole, Alentisan, Superdavloxan, Sancelant TMB
EINECS/EC Number 244-445-0
PubChem CID30692
MDL Number MFCD00072503
UN Number 3026 (for certain formulations)
InChI Key TUBQDCKAWGHZPF-UHFFFAOYSA-N
Performance Advantages
Broad-Spectrum Activity: Effective against fungi, bacteria, and algae across multiple industrial applications
Industrial Versatility: Used in leather processing, water treatment, pulp/paper, wood preservation, and paints
Microbial Control: Disrupts microbial cell function, preventing material degradation and biofouling
Solubility: Soluble in most organic solvents, facilitating formulation in various industrial products
EPA Registered: Listed as an active ingredient in pesticide formulations and regulated under FIFRA
TCMTB is a versatile industrial biocide used across multiple sectors for microbial control and material preservation :
Leather processing (fungicide)
Water treatment / cooling towers
Pulp & paper mills (slimicide)
Wood preservation Paints & coatings preservative
Textile processing Carpet / wallpaper adhesives
Seed treatment (cereals, cotton, corn)
Marine anti-fouling / zebra mussel control
Industrial wastewater systems
Leather Industry
TCMTB is widely used as a fungicide in leather processing to prevent microbial degradation during tanning and storage. It protects wet-blue and finished leather from fungal attack, ensuring product quality and longevity Studies confirm its effectiveness as a fungicide on leather
Water Treatment & Pulp/Paper
In industrial water systems, cooling towers, and pulp/paper mills, TCMTB serves as an effective slimicide and bactericide, controlling slime-forming bacteria and fungi that cause blockages and degradation [citation:3][citation:7]. It is used as a preservative and slimicide in paper production
Wood Preservation & Agriculture
TCMTB is used as a wood preservative, protecting lumber from fungal decay and insect damage [citation:3][citation:9]. In agriculture, it is applied as a contact fungicide for seed treatment (barley, cotton, corn, rice, sorghum, sugar beets, wheat) to prevent seed-borne diseases
Standard Packaging
Various container sizes available depending on concentration and formulation (technical grades 30%, 60%, 80%)
Laboratory/R&D sizes: 25mg, 100mg, 250mg, 1g (for research use only) .
Industrial drums: Typically 200kg or custom packaging for bulk shipments.
Storage Conditions
Store in a cool, dry, well-ventilated area away from direct sunlight and heat sources
Long-term storage: Recommended at -20°C to maintain stability
Keep containers tightly sealed; protect from moisture and incompatible materials.
Avoid storage near strong oxidizing agents, strong acids, or bases.
Shelf life: When stored properly, ≥24 months from manufacture date (typical).
Shelf life: Minimum 24 months from manufacture date when stored properly under recommended conditions.
Transport Information
IMO/IMDG Not dangerous goods
IATA Not restricted
ADR/RID Non-hazardous for transport
Frequently Asked Questions (FAQ)
Q:What is the exact chemical name of CAS 21564-17-0?
Q:What is the physical state and appearance of TCMTB?
Q: What is the density of TCMTB?
Q:What is the water solubility of TCMTB?
Q:What are the primary industrial applications of TCMTB?
Q: What is the purity specification for technical grade TCMTB?
Q:What is the mechanism of action of TCMTB as a biocide?
Q:What are the primary synonyms and trade names for TCMTB?
Q:What is the vapor pressure of TCMTB?
Q:What safety precautions should be taken when handling TCMTB?
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Other chemicals
2-Hydroxy-2methylpropiophenone
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4-Chloro-3,5-dimethylphenol (CA
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