1,1,1-Trichloro-2-methyl-2-propanol hemihydrate
1,1,1-Trichloro-2-methyl-2-propanol hemihydrate (CAS 6001-64-5) is a trichlorinated tertiary alcohol with a molecular weight of 186.46 g/mol. This compound, also known as chlorobutanol, serves as a valuable preservative. Its primary application lies in its ability to inhibit microbial growth, making it useful in various formulations requiring stability and extended shelf-life. Tech Serve Solutions offers this chemical for research and synthesis purposes.
- IUPAC
- β,β,β-Trichloro-t-butanol,β,β,β-Trichloro-tert-butyl alcohol hemihydrate,Acetone chloroform,Chloretone,Chlorobutanol
- Synonyms
- 6001-64-5Acetone chloroformChloretoneChlorobutanolβ,β,β-Trichloro-t-butanolβ,β,β-Trichloro-tert-butyl alcohol hemihydrate

Preservative in Formulations
1,1,1-Trichloro-2-methyl-2-propanol hemihydrate functions as an effective preservative. Its antimicrobial properties help maintain the integrity and extend the shelf-life of various chemical products.
Chemical Synthesis Intermediate
As a tertiary alcohol and a building block, this compound can be utilised in organic synthesis. It provides a trichloromethyl group and a tertiary alcohol moiety for further chemical transformations.
Analytical Standard
This chemical can be employed in analytical chemistry, for instance, in the quantification of preservatives using methods such as capillary electrophoresis, as referenced in scientific literature.
| Molecular weight | 186.46 |
|---|---|
| Linear formula | Cl3CC(CH3)2OH · 0.5H2O |
| Assay | 98% |
| Application | 1,1,1-Trichloro-2-methyl-2-propanol (chlorobutanol) is a preservative that can be quantified using capillary electrophoretic method1. |
| Melting point | 77-79 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 100 °C / 212 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26-36/37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1,1,1-Trichloro-2-methyl-2-propanol hemihydrate used for?
+
1,1,1-Trichloro-2-methyl-2-propanol hemihydrate is primarily used as a preservative due to its antimicrobial properties. It can also serve as an intermediate in chemical synthesis and for analytical quantification.
What is the CAS number and formula for 1,1,1-Trichloro-2-methyl-2-propanol hemihydrate?
+
The CAS number is 6001-64-5 and the linear formula is Cl3CC(CH3)2OH · 0.5H2O.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 1,1,1-Trichloro-2-methyl-2-propanol hemihydrate with an assay of 98%. We do not represent this product as USP, BP, or EP grade; it is suitable for technical and research applications.
What are the safety and handling considerations for this chemical?
+
This compound is classified as harmful if swallowed and causes skin and serious eye irritation, and may cause respiratory irritation. It requires appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves. Handle in a well-ventilated area.
How is 1,1,1-Trichloro-2-methyl-2-propanol hemihydrate packed and shipped?
+
Tech Serve Solutions packages and exports chemicals according to international shipping regulations to ensure safe transit. Specific packaging details are available upon request.
How can I request a sample or a quote for 1,1,1-Trichloro-2-methyl-2-propanol hemihydrate?
+
You can request a sample or a quote by contacting our sales team through the website or by direct inquiry, providing the product name and CAS number.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis