Naphthaleneacetic Acid (NAA)
Auxin • thinning/fruiting • PGR
Assay (technical)
≥ 98% (as NAA)
Melting range
≈ 135–142 °C
pKa (25 °C)
≈ 4.2
Solubility
low in water; soluble in ethanol/acetone
Common liquids
4.5–10% w/w NAA (as acid or salt)
NAA is a regulated PGR. Uses, rates, and timings must follow the
registered label in your market. Supply is for professional
agricultural use by licensed operators.
| Parameter | Typical | Spec |
|---|---|---|
| Assay (NAA) | ≥ 98.0% | ≥ 98.0% |
| Melting point | 135–142 °C | per COA |
| Loss on drying | ≤ 0.5% | ≤ 1.0% |
| Insolubles | ≤ 0.1% | ≤ 0.2% |
| Appearance | white/off‑white crystalline powder | conforms |
| Parameter | Typical | Spec |
|---|---|---|
| Assay (NAA sodium salt) | ≥ 95% | ≥ 94% |
| NAA equivalent | ≥ 85% | report |
| pH (1% soln) | 7.0–9.0 | 6.5–9.5 |
| Moisture | ≤ 1.0% | ≤ 2.0% |
| Appearance | white to light‑tan powder | conforms |
| Parameter | Typical | Spec |
|---|---|---|
| NAA content | 4.5% or 10% w/w | per order |
| Base | water (salt) or solvent (acid) | per order |
| Density (20 °C) | ≈ 0.95–1.10 g/mL | report |
| pH (aqueous) | ≈ 6–8 (salt‑based) | report |
| Appearance | clear to slightly hazy liquid | conforms |
Formulations supplied for registered, label‑compliant uses only.
Provide target market and intended crop program in the RFQ.
| Parameter | Option | Notes |
|---|---|---|
| Co‑solvents / wetters | alcohols, glycol ethers, surfactants | to improve cuticle uptake |
| Salt vs. acid | sodium salt / free acid | per water/solvent system |
| Stabilizers | UV/light stabilizers | for shelf stability |
| Label pack sizes | 1 L • 5 L • 20 L • 200 L | market dependent |
| Applications (Label Examples) | Packaging | Storage & Handling |
|---|---|---|
|
• Orchard thinning/fruiting programs where registered
(e.g., apples, pears, citrus).
• Specialized rooting/propagation uses where permitted. • Always follow the local registered label for crop, rate, timing, and PHI. |
• Technical: 25 kg fiber drums • 1 kg foil bags.
• Sodium salt: 25 kg bags • 500–1000 kg big bags. • Liquids: 1 L / 5 L / 20 L pails • 200 L drums • 1000 L IBCs. |
• Store cool, dry and out of direct sunlight; keep
containers tightly closed.
• DG/transport class depends on formulation—refer to SDS and local rules. • For professional ag use by licensed operators; use PPE per SDS. |
Specs are representative; shipped material conforms to the COA for
the lot. Regulatory status, registrations and label directions
vary by country—confirm locally before purchase and use.