从India供应商批发进口Acid Green 20 — FOB条款

Acid Green 20 from Viana Chemicals, based in Ahmedabad, Gujarat, is supplied for wool, silk, polyamide fibre dyeing and printing, with additional suitability for leather and paper coloration. The product is also traded under the synonyms Acid Dark Green 6B and Acid Green B, names that reflect historical commercial nomenclature rather than distinct chemical identities. The CAS number 5850-39-5 applies consistently across these designations, though buyers should specify the exact commercial name when requesting samples to avoid shade variation between nominally equivalent products from different manufacturers.

The Ahmedabad location places Viana Chemicals within India's western chemical manufacturing corridor, with proximity to dye intermediate suppliers and textile processing clusters in Surat and Ichalkaranji. Acid Green 20 for wool and silk typically requires acid donor salts and controlled pH between 3.0 and 5.5, with levelling type acid dyes showing superior migration but lower wet fastness than milling acid dyes; the specific sub-class for this Viana Chemicals product is not stated. For polyamide applications, the dye exhibits affinity for terminal amino groups, with compatibility in combination shades dependent on the dyeing rate and saturation value relative to companion dyes. Paper coloration with acid dyes demands attention to rosin sizing compatibility and salt tolerance, parameters that vary with the pulp furnish and wet-end chemistry.

End-use sectors identified by the supplier include textile, leather and ink industries, with ink applications requiring additional validation of resin compatibility, solvent fastness and viscosity stability in formulated systems. The organic supplier tier designation suggests a manufacturer or tightly controlled trader relationship rather than arm's-length import-resale structure. Buyers should confirm whether Viana Chemicals operates direct synthesis or toll manufacturing, as this affects technical support depth, batch consistency and capacity scalability. No minimum order quantity, packaging specifications, or lead time data are present in the source, and all commercial terms require direct negotiation.

Viana Chemicals operates from 902, Landmark Building, 100 ft Anand Nagar Road, Ahmedabad, Gujarat, India. The voyage trust tier and organic supplier tier indicate a verified operational presence with direct manufacturing or tightly controlled supply chain relationships, though the specific meaning of these tier designations should be clarified with the platform or through direct supplier inquiry. Response metrics are recorded at zero percent with zero average response hours, which in platform terminology may indicate limited transaction history rather than non-operation, and buyers should initiate contact to assess actual responsiveness and technical competency.

The company profile contains no stated year of establishment, employee count, production capacity, turnover figures, named clients, or facility certifications. No manufacturing plant address is provided separate from the corporate office location on Anand Nagar Road, which appears to be a commercial building rather than industrial premises. Buyers should request a factory audit or third-party verification report, particularly to confirm whether dye synthesis occurs at company-owned facilities or through contracted manufacturers, and to assess environmental compliance status for effluent handling in Gujarat's regulated chemical zones.