Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
Sourcing Bromothymol blue?
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C.I. Direct Blue 273
Direct dye for textiles
Sourcing Bromothymol blue?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Bromothymol blue is a pH indicator commonly used to measure substances with a relatively neutral pH. It is frequently employed to detect the presence of carbonic acid in liquids.
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 Bromothymol blue (CAS 76-59-5) is 2934.99.
2934.99
2934 99 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
2-bromo-4-[3-(3-bromo-4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]-3-methyl-6-propan-2-ylphenol
NUHCTOLBWMJMLX-UHFFFAOYSA-N
CC1=C(C=C(C(=C1Br)O)C(C)C)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=C(C(=C(C(=C4)C(C)C)O)Br)C