
Bis Aminopropyl Diglycol Dimaleate (BADD) is a di-salt formed by the reaction of 3,3′-[oxydiyl (2,1-ethylenedioxy)] di-1-propanamine with maleic acid (1:2), MF: C₁₄H₂₈N₂O₇ MW: 336.39. It is a yellow to amber liquid at room temperature and serves as a revolutionary bond-repairing active ingredient in the hair care industry. It reconnects disulfide bonds in hair that have been broken by chemical treatments (perming, dyeing, and bleaching) and is widely used in high-end hair care products.
| Item | Specification |
| Appearance | Yellow to amber liquid |
| Density | 1.18 g/cm³ (20°C) |
| Vapor pressure | 0–0 Pa (20–25°C) |
| Surface tension | 72.8 mN/m (1 g/L, 20°C) |
| PH | 3.30–3.55 (50% aqueous solution) |
| Solubility | Easily soluble in water; slightly soluble in methanol and ethanol; insoluble in non-polar solvents. |
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