--- product_id: 142589754 title: "a-Naphthalene Acetic Acid, 25 Grams" brand: "rpi" price: "€ 42.37" currency: EUR in_stock: true reviews_count: 4 category: "Rpi" url: https://www.desertcart.es/products/142589754-a-naphthalene-acetic-acid-25-grams store_origin: ES region: Spain --- # 3-Year Shelf Life When Stored Properly Compact 25g Powder Bottle Purity Assured Chemical Formula C12H10O2 a-Naphthalene Acetic Acid, 25 Grams **Brand:** rpi **Price:** € 42.37 **Availability:** ✅ In Stock ## Summary > 🌱 Unlock the secret to unstoppable root growth with precision-grade NAA! ## Quick Answers - **What is this?** a-Naphthalene Acetic Acid, 25 Grams by rpi - **How much does it cost?** € 42.37 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/142589754-a-naphthalene-acetic-acid-25-grams) ## Best For - rpi enthusiasts ## Why This Product - Trusted rpi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Easy-to-Mix Formula:** Dissolves smoothly in ethanol and water to avoid clumping and ensure even application. - • **Long-Term Stability:** Store cool and dry for up to 3 years of peak performance—no wasted product. - • **Versatile Application:** Ideal for root drench and foliar spray, perfect for propagation and transplant success. - • **Precision Rooting Power:** Scientifically formulated NAA powder for consistent, reliable root stimulation. - • **Trusted by Professionals:** Highly rated with 4.7 stars, favored by researchers and horticulturists alike. ## Overview a-Naphthalene Acetic Acid (NAA) 25g powder by RPI is a high-purity plant hormone used exclusively for research and manufacturing. With a molecular weight of 186.2 and CAS number 86-87-3, this product promotes robust root development and plant propagation. Its easy-to-mix formula dissolves in ethanol and water, ensuring even application. Proper storage extends shelf life up to 3 years, making it a reliable choice for professionals seeking consistent, proven results. ## Description RPI N20020-25. 0 a-Naphthalene Acetic Acid, 25g. This product is made in China and manufactured by RPI (Research Products International). Review: Effective Rooting Hormone – Long-Lasting, Easy to Mix, Proven Results - Customer Review – Naphthaleneacetic Acid (NAA): Reliable product. I’ve used it consistently for about a year with great results. The bottle it comes in looks different from the listing photo, but the quality is solid. How to Mix: To prepare, dissolve the amount you need in a small amount of pure ethanol or high-proof alcohol (2–5 mL). Stir or shake until fully dissolved. Then slowly pour that into 1 liter of water, mixing well. This avoids clumping and makes sure it blends evenly. Use the mix right away for best results. How to Use: • Root Drench: Pour around the base of the plant to encourage strong root growth. Works well for cuttings and transplants. • Foliar Spray: Lightly mist leaves for propagation or tissue growth. For better absorption, add a small amount of non-ionic surfactant (like a drop of baby shampoo or specialized plant wetting agent). Don’t spray during hot, sunny hours—early morning or evening is best. Storage Tips: • Store the powder in a cool, dry place, ideally in the fridge (2–8 °C). Lasts up to 3 years if kept dry and out of light. • At room temperature (around 25 °C), it’s fine for a little over a year, as long as it’s in container closed well and kept dry. Adding a silica gel desiccant and oxygen absorber to the container is a good idea. • Once mixed in water, use it right away—it breaks down fast in liquid form. Highly effective for rooting and plant growth. No issues with stability or performance when stored and used correctly. Review: Good - Good ## Features - Product is sold for research or further manufacturing use only, not for food or drug use. - Chemical Formula: C12H10O2 - CAS Number: 86-87-3 - Molecular Weight: 186.2 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01MZ66JFO | | Best Sellers Rank | #278,490 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #239 in Chemical Acids | | Brand | RPI | | Brand Name | RPI | | Container Type | Bottle | | Customer Reviews | 4.6 out of 5 stars 13 Reviews | | Included Components | Acetic Acid | | Item Form | Powder | | Item Weight | 2.4 ounces | | Manufacturer | RPI, Corp. | | Model Number | N20020-25.0 | | Package Information | Bottle | | Part Number | N20020-25.0 | ## Product Details - **Brand:** RPI - **Item Form:** Powder - **Item Weight:** 0.15 Pounds - **Manufacturer:** RPI, Corp. - **Package Information:** Bottle ## Images ![a-Naphthalene Acetic Acid, 25 Grams - Image 1](https://m.media-amazon.com/images/I/71X+tf-bSQL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Effective Rooting Hormone – Long-Lasting, Easy to Mix, Proven Results *by R***D on April 8, 2025* Customer Review – Naphthaleneacetic Acid (NAA): Reliable product. I’ve used it consistently for about a year with great results. The bottle it comes in looks different from the listing photo, but the quality is solid. How to Mix: To prepare, dissolve the amount you need in a small amount of pure ethanol or high-proof alcohol (2–5 mL). Stir or shake until fully dissolved. Then slowly pour that into 1 liter of water, mixing well. This avoids clumping and makes sure it blends evenly. Use the mix right away for best results. How to Use: • Root Drench: Pour around the base of the plant to encourage strong root growth. Works well for cuttings and transplants. • Foliar Spray: Lightly mist leaves for propagation or tissue growth. For better absorption, add a small amount of non-ionic surfactant (like a drop of baby shampoo or specialized plant wetting agent). Don’t spray during hot, sunny hours—early morning or evening is best. Storage Tips: • Store the powder in a cool, dry place, ideally in the fridge (2–8 °C). Lasts up to 3 years if kept dry and out of light. • At room temperature (around 25 °C), it’s fine for a little over a year, as long as it’s in container closed well and kept dry. Adding a silica gel desiccant and oxygen absorber to the container is a good idea. • Once mixed in water, use it right away—it breaks down fast in liquid form. Highly effective for rooting and plant growth. No issues with stability or performance when stored and used correctly. ### ⭐⭐⭐⭐⭐ Good *by C***H on October 30, 2025* Good ### ⭐⭐⭐⭐ Bien *by R***Y on March 22, 2024* Bien empacado y rápido ## Frequently Bought Together - RPI N20020-25.0 a-Naphthalene Acetic Acid, 25g - Indole-3-acetic Acid [IAA], 25 Grams --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.es/products/142589754-a-naphthalene-acetic-acid-25-grams](https://www.desertcart.es/products/142589754-a-naphthalene-acetic-acid-25-grams) --- *Product available on Desertcart Spain* *Store origin: ES* *Last updated: 2026-05-20*