Sodium 2,4-diaminobenzenesulfonate CAS 3177-22-8 Suppliers
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CAS 3177-22-8

Sodium 2,4-diaminobenzenesulfonate

Nitrogen Building Blocks Dye Pharma


Sodium 2,4-diaminobenzenesulfonate is a grey-white powder, the monosodium salt of 2,4-diaminobenzenesulfonic acid. The bis-amino and sodium sulfonate groups in its structure confer high reactivity and water solubility, making it an indispensable key raw material in fine chemicals. Amid the trend toward environmental upgrading, it can serve as an internal emulsifying chain extender in waterborne polyurethane (WPU) synthesis, effectively replacing traditional organic solvents and helping downstream manufacturers achieve “near-zero VOC emission” green production processes.



Applications: Key intermediate for direct, acid and reactive dyes (e.g. Direct Fast Black, acid mordant black); sulfonamide drug intermediates; waterborne polyurethane chain extender.

  

Appearance

Grayish-white powder

Molecular Formula

C6H7N2NaO3S

Molecular Weight

210.19 g/mol

Purity

≥ 80.0% (99.0% by GC)

Packaging

25 kg bag

COA

Available on request


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Taixing Zhongran Chemical Co., Ltd. founded in 2001, is a professional manufacturer of pharmaceutical, agrochemical and dye intermediates. Sodium 2,4-diaminobenzenesulfonate Factory. Located in Taixing Economic Development Zone, Jiangsu Province, China.
We run four production bases with an annual fine chemical capacity of more than 2,000 tons. As a factory that exports directly, you get transparent factory pricing, consistent product supply and complete documentation (COA, in-house HPLC/GC reports) for every order — no intermediary margin.
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