4B Acid
Supplier in Dubai & UAE

4B Acid is used mainly as a diazo component for azo lake pigments such as Lithol Rubine, for printing inks, plastics and coatings colourants and specialty dye intermediates. Typical uses are as a diazo component for azo lake pigments such as Lithol Rubine (Pigment Red 57:1 types), for printing inks, plastics and coatings colourants and specialty dye intermediates.

The CAS number of 4B Acid is 88-44-8. Its molecular formula is C₇H₉NO₃S and its molecular weight is 187.22 g/mol.

4B Acid (CAS 88-44-8) is also sold as 4B Acid, 4-Aminotoluene-3-sulfonic acid, 2-Amino-5-methylbenzenesulfonic acid, p-Toluidine-2-sulfonic acid, 6-Amino-m-toluenesulfonic acid. Please mention the CAS number in your enquiry so we quote the right material.

Chelora Chemicals UAE is a B2B chemical supplier and distributor of 4B Acid, serving Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah, Fujairah and Umm Al Quwain, with full COA, SDS and TDS documentation and export to the wider GCC.

Yes. We deliver to all seven Emirates, including Jebel Ali and JAFZA in Dubai, KEZAD, Musaffah and Khalifa Port in Abu Dhabi, and SAIF Zone and Hamriyah Free Zone in Sharjah, as well as RAKEZ, Ajman Free Zone and Fujairah.

Our standard grade is ≥ 98.0% by GC or HPLC as per the COA. Specific limits on moisture, isomers, colour or other impurities can be sourced on request to suit your process.

Several amino toluene sulfonic acids are used in pigments, including 4B acid (CAS 88-44-8), 2B acid (CAS 88-51-7) and CLT acid / C acid (CAS 88-53-9), and they are not interchangeable. 4B Acid is CAS 88-44-8. Always quote the CAS number to avoid receiving the wrong material.

Pricing depends on purity, quantity, packing, Incoterm and current market conditions. Share your requirement through our contact page and our team aims to send a clear quotation within one business day.

It is typically supplied in 25 kg liner-sealed bags or fibre / steel drums, with larger bulk bags and smaller packs available for trials. Packaging is sealed and labelled for safe dangerous-goods transport.

The minimum order depends on packing and availability. We handle everything from a few drums or small packs for trials and lab qualification up to full container loads and ISO tanks.

Store in tightly closed containers in a cool, dry, dark and well-ventilated area, away from direct sunlight and incompatible materials. Keep dry, tightly closed and away from strong oxidisers and nitrites, and avoid creating dust.

Aromatic amino sulfonic acids can irritate skin, eyes and the respiratory tract, may cause allergic skin reactions and dust can be harmful if inhaled; the material may be harmful to aquatic life. Use suitable gloves, goggles and ventilation and follow the SDS supplied with the product.

Yes. We export from the UAE to Saudi Arabia, Oman, Qatar, Kuwait, Bahrain, East and West Africa, South Asia and other markets on EXW, FOB, CFR, CIF, DAP or DDP terms, subject to the import rules of each destination.

Yes. Samples are available for qualification on request, together with the COA and SDS, so your QC or R&D team can approve the material before a commercial order.