Overview
Triethylene glycol monochlorohydrin (CAS 5197-62-6 ), also marketed as Provichem 0333, is a chlorinated glycol ether functioning as a reactive intermediate and solvent in specialty chemical synthesis.
Its terminal chlorine group and free hydroxyl make it a practical building block for introducing polyether segments into target molecules. In pharmaceutical synthesis, it serves as an alkylating agent.
It is used for constructing PEGylated intermediates and ether-linked drug conjugates requiring precise chain length control. Agricultural chemical manufacturers use it to synthesize herbicide and pesticide intermediates.
This occurs where a short ethylene oxide chain with a reactive chloride terminus is specified. In polymer chemistry, it acts as a chain-end functionalization agent and initiator for ring-opening polymerization.
This enables controlled incorporation of hydrophilic segments into polyurethane and polyether systems. Specialty surfactant producers also employ it as a precursor for nonionic and cationic amphiphile synthesis.
Triethylene glycol monochlorohydrin is supplied as a liquid in bulk and drum quantities. Technical-grade material is the standard commercial offering, with purity specifications typically confirmed by GC assay.
Buyers sourcing for pharmaceutical or agrochemical intermediate applications should confirm lot-specific CoA documentation with suppliers to ensure the material meets the necessary performance requirements.
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Physical Properties
| Boiling Point | 94-96 °C @ Press: 2 Torr |
| Density | 1.16 g/mL at 25 °C(lit.) |
| Flash Point | 225 °F |
| Appearance | colourless liquid |
| Color | Clear slightly yellow |
| Form | Liquid |
| Refractive Index | n 20/D 1.458(lit.) |
Safety & Handling
Warning GHS07 Hazard Statements H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation Precautionary Statements P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29094990 |
| WGK (Germany) | 3 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 5197-62-6
- EC Number
- 225-984-0
- Mol. Weight
- 168.62
- HS Code
- 29094990
- Category
- Alcohols & Glycols