Acid blue 9

Acid Blue 9 is a synthetic acid dye with the molecular formula C37-H36-N2-O9-S3•2H3-N, supplied by Tianjin Jahe Science &. Technology Co., Ltd from their facility in Tianjin's Huayuan Industry Zone. The material is offered as a reddish-violet powder with a colour strength of 200.0% and a maximum water content of 5.0%, indicating a highly concentrated form that requires proportionally less product to achieve target shade depths. The supplier's imported tier and harbor trust classification suggest a baseline verification status, though the 0.00% response rate and zero recorded average response hours indicate communication should be initiated with clear expectations regarding reply timelines.

The dye belongs to the triphenylmethane class of acid dyes, a category characterised by brilliant colour yield and good solubility in aqueous media. The 200.0% strength designation means the product is twice as concentrated as the standard commercial reference, a factor that must be accounted for in laboratory matching and bulk recipe calculations. Typical applications exploit this molecule's affinity for proteinaceous and some polyamide substrates, with the sulfonic acid groups providing the necessary water solubility and anionic character for dyestuff-fibre interaction. Standard quality parameters for this grade would include batch-to-batch consistency in shade and strength, controlled salt content, and absence of heavy metal contaminants above regulated thresholds.

Primary buyers include textile wet processors working with wool, silk, and nylon 6.6, alongside specialty ink formulators and plastics colorists requiring FDA or EU-compliant colorant systems. The product's noted lightfastness makes it suitable for articles with moderate to good fastness requirements, though the specific blue wool scale rating should be confirmed directly with the supplier for critical end-uses. Prospective importers should clarify whether the 200.0% strength refers to a physical standard or a specific application method, verify compatibility with their substrate and process conditions, and confirm certification status for their target market before committing to volume orders.

Tianjin Jahe Science &. Technology Co., Ltd operates from Unit 702, Entrance 2, Building 8, Tianfa Scientific and Technological Park in Tianjin's Huayuan Industry Zone, a location within one of stepChina's established industrial corridors with access to the Port of Tianjin. The supplier carries an imported tier classification and harbor trust tier, which represents a foundational level of platform engagement rather than an advanced verification standard. The complete absence of response metrics, 0.00% response rate and zero average response hours, is a material signal that buyers should not expect rapid communication and should plan sourcing timelines accordingly.

The listing positions the company as a source of industrial-grade dyes with flexible order arrangements, though no independently verifiable manufacturing certifications, production capacity figures, or client references are present in the available data. The address confirms a presence in a multi-tenant technology park rather than a dedicated manufacturing estate, which is not uncommon for trading-oriented or hybrid entities in this sector. Buyers should conduct direct due diligence on production capabilities, quality management systems, and export documentation competence before relying on this supplier for critical supply chain commitments.