Import Acid Orange 7 — Buy in wholesale FOB from Supplier in China

Acid Orange 7 (C.I. 15510, CAS 633-96-5) is a monoazo acid dye with molecular formula C16H11N2NaO4S and molecular weight 350.33, supplied by Hanghzou Emperor Chemical Co., Ltd from Hangzhou, Zhejiang Province, China. This dye is characterised by high water solubility and brilliant orange shades, making it suitable for textile, paper, and plastics applications where vivid colouration is required. The source description indicates the product is formulated for consistent quality, though buyers should independently verify batch uniformity through sample evaluation.

The dye's relatively low molecular weight compared to polyazo or metal-complex alternatives contributes to its high solubility and rapid diffusion, but may result in lower wet fastness on certain substrates. Typical commercial specifications for Acid Orange 7 include dye content of 80% minimum by spectrophotometric assay, with maximum insoluble matter of 0.5% and pH of 6.0-8.5 in 1% solution. The supplier's source description mentions ISO and SGS compliance, though no specific certificate numbers or scope are provided; these claims require direct verification.

Primary buyers include textile manufacturers producing fashion fabrics, paper mills requiring colour consistency, and plastics compounders incorporating soluble dyes into polymer masterbatches. The dye's compatibility with aqueous systems suits continuous and semi-continuous dyeing processes. Hanghzou Emperor Chemical's harbor trust tier and zero recorded response rate suggest limited platform-mediated engagement; direct technical discussion is needed to confirm application support, custom formulation capability, and regulatory documentation availability for target markets.

Hanghzou Emperor Chemical Co., Ltd is located at Hangzhou Xiaoshan, Hangzhou, Zhejiang 311200, China, operating from this single disclosed address in one of China's major chemical manufacturing regions. The company's trust tier is harbor, with zero platform response rate and no average response hours recorded, indicating no confirmed engagement history through platform channels. No additional facilities, laboratories, or warehouse locations are listed.

The supplier offers Acid Orange 7 for textile, paper, and plastics applications, with claims of ISO and SGS compliance mentioned in their product description. However, no specific certificate numbers, audit dates, or accredited scopes are provided. The company does not disclose manufacturing capacity, R&D facilities, export volumes, or key personnel. Buyers should independently verify all certification claims, request factory audit reports, and confirm the company's export license status and experience with hazard classification documentation for international chemical shipments.