从India供应商批发进口Acid Red 337 Dyes — FOB条款

Acid Red 337 Dyes from Sparrowings International is a trifluoromethyl-substituted acid dye with molecular formula C17H11F3N3NaO4S (CAS 67786-14-6 per supplier data) and EINECS 267-090-3, manufactured in Gujarat, India. The compound incorporates a sodium sulfonate salt for water solubility and a trifluoromethyl group that typically enhances light fastness and hydrophobic character compared to unsubstituted analogues. Sparrowings International offers this material in powder form under their own brand for textile dyestuff applications.

The trifluoromethyl substituent in the molecular formula indicates a modified acid dye structure designed for improved performance on synthetic polyamide substrates and select natural fibres. Standard manufacturing for this chemistry involves diazotisation and coupling reactions followed by salting out, filtration, drying, and standardisation to consistent tinctorial strength. Buyers should note the CAS discrepancy between this listing (67786-14-6) and the commonly referenced 67786-14-5; request Sparrowings International clarify whether this represents an alternative salt form, hydrate, or isomeric variation.

Target buyers include textile commission dyers, hosiery manufacturers, and carpet mills seeking red shades with enhanced wet fastness on nylon. The powder form suits both batch exhaust and continuous pad-steam processes. Sparrowings International positions this as an branded acid dye export from Gujarat; confirm MOQ, standard pack size, and whether the company operates a manufacturing facility or functions as a formulator/distributor, as the profile does not specify production capacity or quality control infrastructure.

Sparrowings International is headquartered at D-101, Maruti Homes, opposite Shreenath Elegance, in Nana Chiloda, Ahmedabad, Gujarat, India (PIN 382330). The company holds harbor trust tier status but displays a 0.00% response rate with zero recorded response hours, indicating potential communication challenges for time-sensitive procurement. The profile does not indicate manufacturing versus trading operations, nor does it disclose workforce, facility certifications, or annual throughput.

The listing presents Sparrowings International as a brand owner for Acid Red 337 Dyes with Gujarat origin, suggesting either local manufacture or regional sourcing with repackaging/standardisation. What is absent is as telling as what is present: no ISO certification details, no named quality control procedures, no environmental compliance statements, and no customer reference list. Buyers should treat initial engagement as a qualification exercise, requesting company registration documents, GST registration, and physical facility verification before committing to volume orders.