从India供应商批量进口Acid Red 52 - Rhodamine B 400

Acid Red 52 - Rhodamine B 400 is a standard-strength synthetic acid dye supplied by Karsandas Mavji from their Mumbai, Maharashtra facility, positioned within India's largest chemical trading and manufacturing hub. The 400 designation indicates a 400 percent dye strength, a common commercial concentration for rhodamine B-based acid dyes used across multiple industrial sectors. This xanthene class dye provides brilliant pink to red coloration through an acidic sulfonate group structure that bonds ionically with protein and polyamide substrates.

The product is formulated from acid dyes and associated compounds, with the Rhodamine B 400 specification suggesting a well-defined colour index composition typical of this dye class. Standard manufacturing involves condensation of phthalic anhydride with m-diethylaminophenol, followed by sulfonation to achieve water solubility. The 400 percent strength represents four times the tinctorial power of a reference standard, offering easier weighing and dosing accuracy compared to super-concentrated variants. Typical commercial specifications for this grade include moisture content below 5 percent, sodium chloride or sulfate as diluent, and pH stability in the range of 2 to 6 for application baths.

Karsandas Mavji markets this dye for wool, nylon, silk, paper, leather, and ink applications, serving textile dyers, paper colouration plants, leather finishers, and specialty ink manufacturers. The multi-substrate positioning indicates versatility within the acid dye application's typical pH and temperature windows. B2B importers should confirm the specific salt balance, physical form, and any added dispersing agents that might affect compatibility with their established dyeing processes.

Karsandas Mavji operates from 203 Rangwala Apartments on M.G. Road in Ghatkopar West, Mumbai 400086, Maharashtra, India. The Mumbai location provides access to Jawaharlal Nehru Port Trust for export shipments and proximity to the dense chemical trading networks of central Mumbai. The supplier holds a harbor trust tier on the platform, though no response rate or average response time data is recorded, suggesting limited or no engagement history through platform messaging.

The company identifies itself among prominent acid dye manufacturers in India, offering multiple packaging options for their product range. Their profile does not specify manufacturing facility details, production capacity, export experience, ISO certification, or specific quality management systems. No information is provided about regulatory compliance documentation, such as REACH registrations, FDA colour additive certifications, or ecological toxicity data. Buyers must verify all manufacturing credentials, quality control procedures, and regulatory documentation directly with Karsandas Mavji before committing to volume orders.