Cocamidopropyl betaine (CAPB, CAS#61789-40-0) is a widely used amphoteric surfactant. The unique performance of amphoteric surfactants originates from their zwitterionic character, which means a single molecule carries both anionic and cationic functional groups.
Thanks to this zwitterionic structure, CAPB exhibits excellent compatibility with anionic, cationic and nonionic surfactants across a broad pH range. It delivers rich, stable foam, great detergency and thickening effects, while maintaining low skin and eye irritation compared to many conventional surfactants.
It is extensively applied in personal care and cosmetic formulations including shampoos, body washes, facial cleansers and hand sanitizers. It can reduce the irritation of strong anionic surfactants, boost foam volume and improve the sensory feel of finished products. Besides personal care, it is also used in mild household cleaners, industrial detergents and textile auxiliary formulations.
Our CAPB is supplied as yellow liquid with stable batch-to-batch quality. We can provide full supporting documents including COA, SDS and TDS for your formulation registration and quality control.
Basic Product Info
CAS Number: 61789-40-0
Chemical Name: Cocamidopropyl betaine
Synonyms: NAXAINE C, NAXAINE CO, Lonzaine® CO
Chemical Formula: C₁₉H₃₈N₂O₃
Appearance: Yellow Liquid
Packing & Supply
MOQ: 1 FCL (Full Container Load)
Packaging: Standard industrial drum packaging, customizable
Available Documents: COA, SDS, TDS, Packing List, Commercial Invoice
Contact us for quotation, technical datasheet and bulk supply.
Google Meta Title
Cocamidopropyl betaine CAS 61789-40-0 | CAPB Amphoteric Surfactant
Meta Description
Cocamidopropyl betaine CAPB CAS 61789-40-0, zwitterionic amphoteric surfactant for shampoo, body wash and cosmetic formulations. Yellow liquid. MOQ:1FCL. COA & SDS available. Inquiry for price.

| Cocamidopropyl betaine Chemical Properties |
| Boiling point | 104.3℃[at 101 325 Pa] |
| density | 1.045-1.055 g/cm3 |
| vapor pressure | 0Pa at 25℃ |
| refractive index | 1.308–1.395 |
| storage temp. | Refrigerator |
| solubility | Methanol (Sparingly), Water (Sparingly) |
| form | Oil |
| color | Colourless |
| Odor | at 100.00%. bland |
| Water Solubility | 23.676g/L |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
| Cosmetics Ingredients Functions | SKIN CONDITIONING - MISCELLANEOUS ANTISTATIC SURFACTANT - CLEANSING SURFACTANT - FOAM BOOSTING HAIR CONDITIONING VISCOSITY CONTROLLING CLEANSING |
| InChI | InChI=1S/C19H38N2O3/c1-4-5-6-7-8-9-10-11-12-14-18(22)20-15-13-16-21(2,3)17-19(23)24/h4-17H2,1-3H3,(H-,20,22,23,24) |
| InChIKey | MRUAUOIMASANKQ-UHFFFAOYSA-N |
| LogP | -1.28 |
| EPA Substance Registry System | 1-Propanaminium, 3-amino-N-(carboxymethyl)-N,N-dimethyl-, N-coco acyl derivs., inner salts (61789-40-0) |
| Safety Information |
| TSCA | TSCA listed |









