1-Naphthylacetic acid
CAS 86-87-3
EC 201-705-8
Formula C12H10O2
MW 186.21 g/mol
Organic Acids Agriculture & FeedPersonal Care & Cosmetics Preservation & BiocideCatalysisAntioxidant & Stabilizer
Description
1-Naphthylacetic acid (CAS 86-87-3), also known as alpha-NAA and sold under trade names including Planofix, Fruitofix, and Phyomone, is a synthetic auxin-class plant growth regulator derived from naphthalene. It carries no assigned E-code and is classified under HS code 29163900.
In agriculture, alpha-NAA promotes root initiation in cuttings and regulates fruit set and thinning by mimicking natural auxin signaling at the cellular level. In personal care formulations, it functions as a skin conditioner and antimicrobial agent, where its aromatic acid structure contributes to preservative activity against microbial proliferation.
This material is available in technical and agricultural grades as a crystalline powder or soluble salt form. It is subject to REACH registration requirements within the EU, and suppliers should provide a current Safety Data Sheet and Certificate of Analysis. Packaging is typically offered in multi-kilogram quantities suited to industrial procurement volumes.
In agriculture, alpha-NAA promotes root initiation in cuttings and regulates fruit set and thinning by mimicking natural auxin signaling at the cellular level. In personal care formulations, it functions as a skin conditioner and antimicrobial agent, where its aromatic acid structure contributes to preservative activity against microbial proliferation.
This material is available in technical and agricultural grades as a crystalline powder or soluble salt form. It is subject to REACH registration requirements within the EU, and suppliers should provide a current Safety Data Sheet and Certificate of Analysis. Packaging is typically offered in multi-kilogram quantities suited to industrial procurement volumes.
Physical Properties
| Melting Point | 134.5-135.5 °C |
| Boiling Point | 280.69°C (rough estimate) |
| Density | 1.1032 (rough estimate) |
| Flash Point | >100°C |
| Appearance | α-Naphthyleneacetic acid is a white crystalline solid, needles, powder, or colorless liquid. Odorless. |
| Color | light yellow |
| Odor | Odorless |
| Form | crystalline |
| Water Solubility | Slightly soluble in water, ethanol, acetone, chloroform and ether. |
| Refractive Index | 1.6010 (estimate) |
| pH | 3.0 (0.6g/l, H2O, 25℃) |
| Log P | 2.240 |
Safety & Handling (Learn More)
Danger GHS05 GHS07
H
H302H315H318H319H335H412
P
P261P264P270P271P273P280P317P319P321P330P405P501P264+P265P301+P317P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 29163900 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
2-naphthalen-1-ylacetic acidAlpha-NAA1-naphthaleneacetic acidNAAα-NAAPhyomoneBETA-NAAPlanofixFruitofix
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