Safety Reference
Danger
H301Toxic if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335
Sourcing Indole-3-butyric acid?
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Sourcing Indole-3-butyric acid?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Indole-3-butyric acid is a plant hormone in the auxin family, commonly used to stimulate root development in cuttings. It is a white to light-yellow crystalline solid and is an ingredient in many commercial horticultural rooting products.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
The international HS code for Indole-3-butyric acid (CAS 133-32-4) is 2933.99.
2933.99
2933 99 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
4-(1H-indol-3-yl)butanoic acid
JTEDVYBZBROSJT-UHFFFAOYSA-N
C1=CC=C2C(=C1)C(=CN2)CCCC(=O)O