Overview
Chloroallyl methenamine chloride (CAS 51229-78-8 ), commercially recognized as the cis-form of Quaternium-15, is a formaldehyde-releasing biocide used to control microbial growth in water-based industrial and personal care formulations.
It functions by generating controlled levels of formaldehyde in situ, providing broad-spectrum preservation against bacteria, yeasts, and molds. In coatings and adhesives, it protects water-based systems from microbial spoilage.
This includes latex paints and construction adhesives during storage and in-can use. Personal care formulators incorporate it as a preservative in rinse-off and leave-on products such as shampoos, conditioners, and lotions.
Consistent antimicrobial efficacy across a broad pH range is a key selection criterion for these applications. Sealant and elastomer manufacturers use it to extend the shelf life of aqueous dispersions susceptible to bacterial contamination.
It also finds use in metalworking fluids and industrial water treatment where microbial control directly impacts process integrity. The chemical is supplied as an aqueous solution with active concentrations typically in the range of 96–98%.
It is available in solid form or as diluted liquid grades to suit various manufacturing needs. The product is offered in technical and cosmetic-grade specifications to meet the requirements of both industrial and personal care end markets.
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Physical Properties
| Appearance | solid |
| Color | White to Pale Yellow |
| Form | Solid |
Safety & Handling
Warning GHS02 GHS07 GHS08 GHS09 GHS06 Hazard Statements H228 Flammable solid H302 Harmful if swallowed H311 Toxic in contact with skin H312 Harmful in contact with skin H315 Causes skin irritation H317 May cause an allergic skin reaction H319 Causes serious eye irritation H361 Suspected of damaging fertility or the unborn child H373 May causes damage to organs through prolonged or repeated exposure H411 Toxic to aquatic life with long lasting effects Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P262 Do not get in eyes, on skin, or on clothing. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P391 Collect spillage. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P332+P317 Get emergency medical help. P333+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P361+P364 Take off immediately all contaminated clothing and wash it before reuse. P362+P364 Take off contaminated clothing and wash it before reuse. P370+P378 Use … for extinction. 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
| UN Number | 1325 |
| ADR Class | 4.1 |
| Packing Group | II |
| Storage Class | 4.1B - Flammable solid hazardous materials |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 51229-78-8
- EC Number
- -
- Mol. Weight
- 251.15
- Category
- Surfactants