About Changshan County Hongyun Chemical Co., Ltd. - Chemicals & Allied Products Supplier in China

Changshan County Hongyun Chemical Co., Ltd. is based in China and currently lists five distinct chemical products in its catalogue. The company’s offerings fall under the Chemicals & Allied Products and Agriculture categories and include heterocyclic nitriles, chlorinated nitro aromatics, aromatic diamine derivatives, organophosphate intermediates, and chlorinated nicotinic acids. The listed HS codes cover the 2919.90 family for organophosphate compounds and the 2921.42 family for aromatic amines, reflecting standard customs classification for such intermediates. All five products are identified by their systematic chemical names, providing clear indication of molecular composition for potential buyers. The catalogue therefore spans a range of functional groups commonly used in agrochemical synthesis and specialty chemical manufacturing.

The product set comprises 3‑cyano‑2,6‑dichloro‑5‑fluoropyridine, 3,4‑dichloro‑nitrobenzene, 3,4‑dichloroaniline (HS 2921.42), 1,2,4‑tributyl‑phosphorotrithioate (HS 2919.90), and 2,6‑dichloro‑5‑fluoronicotinic acid. These chemicals serve as key intermediates for the production of herbicides, fungicides, and other crop‑protection agents, as well as for specialty polymer and resin applications. The inclusion of both halogenated pyridine and nicotinic acid derivatives indicates capability in supplying niche building blocks for high‑value agrochemical pipelines. No additional product categories are listed beyond the five items.

Product Range and Specialties of Changshan County Hongyun Chemical Co., Ltd.

The catalogue lists five intermediates: 3‑cyano‑2,6‑dichloro‑5‑fluoropyridine, 3,4‑dichloro‑nitrobenzene, 3,4‑dichloroaniline (HS 2921.42, aromatic diamine), 1,2,4‑tributyl‑phosphorotrithioate (HS 2919.90, organophosphate) and 2,6‑dichloro‑5‑fluoronicotinic acid. In the chemical trade, these compounds are usually supplied in purity grades of 95 % to 99 % by weight, with moisture content below 0.5 % for acid derivatives and below 0.1 % for organophosphate esters. Standard packaging includes 25 kg fiber drums for bulk shipments and 500 g to 1 kg HDPE bottles for analytical samples.

Typical industry specifications for 3,4‑dichloroaniline require an HPLC purity of at least 98 % and verification of the aromatic amine content by UV‑Vis spectroscopy. Organophosphate intermediates such as 1,2,4‑tributyl‑phosphorotrithioate are commonly examined for phosphorus content (≥ 95 % P) and tri‑butyl ester profile by GC‑MS. Halogenated nitro aromatics like 3,4‑dichloro‑nitrobenzene are regulated under REACH for nitro‑aromatic hazards, and buyers often request a nitro‑group content analysis and a thermal stability test (e.g., DSC melting point).

Trade and Export Information - Changshan County Hongyun Chemical Co., Ltd.

China is a major exporter of specialty chemical intermediates, and the HS‑2919 and HS‑2921 chapters are frequently shipped to Europe, North America, and Southeast Asian manufacturing hubs. Buyers in the agrochemical sector typically require compliance with REACH (EU) and TSCA (USA) registrations, and they often request third‑party laboratory certificates that confirm purity, heavy‑metal limits, and absence of prohibited substances such as dioxins. Standard Incoterms for bulk chemical shipments from China are FOB Shanghai or CIF destination port, with freight handled in 20‑ft or 40‑ft containers equipped with inner liners for moisture protection.

Given the hazardous nature of organophosphate and nitro‑aromatic compounds, exporters normally apply UN classification for Class 6.1 (toxic) or Class 6.2 (infectious) as appropriate, and they provide Safety Data Sheets (SDS) in the language of the destination country. Commonly required certifications include ISO 9001 quality management, ISO 14001 environmental management, and, where applicable, GMP for pharmaceutical‑grade intermediates. Packaging is typically in UN‑rated 25 kg drums with inner liners, sealed with tamper‑evident caps, and labeled according to GHS hazard pictograms.

Sourcing from Changshan County Hongyun Chemical Co., Ltd. - Buyer Guidance

Prospective buyers should request a current Certificate of Analysis (CoA) that details assay purity, moisture, heavy‑metal content, and residual solvents for each intermediate. An up‑to‑date Safety Data Sheet (SDS) must be obtained to verify handling, storage, and transport requirements, especially for the organophosphate and nitro‑aromatic products. Buyers are advised to confirm that the supplier can provide REACH registration numbers or pre‑registration dossiers if the end‑use falls under EU regulation.

Prior to placing a full order, requesting a 500 g analytical sample allows verification of purity by the buyer’s own laboratory. Typical minimum order quantities for bulk shipment range from 500 kg to 2 tonnes, depending on the product and packaging option. Lead times for production and quality release are commonly 4 - 6 weeks after order confirmation, with additional time for customs clearance in the importing country.

What chemical intermediates does Changshan County Hongyun Chemical Co., Ltd. currently list?

The supplier lists five intermediates: 3‑cyano‑2,6‑dichloro‑5‑fluoropyridine, 3,4‑dichloro‑nitrobenzene, 3,4‑dichloroaniline (HS 2921.42), 1,2,4‑tributyl‑phosphorotrithioate (HS 2919.90), and 2,6‑dichloro‑5‑fluoronicotinic acid.

Which HS codes are associated with the listed products?

3,4‑dichloroaniline is classified under HS 2921.42 (Aromatic amines) and 1,2,4‑tributyl‑phosphorotrithioate under HS 2919.90 (Other organic chemicals).

What purity levels are typical for these intermediates?

Industry practice expects bulk purity between 95 % and 99 % w/w, with moisture below 0.5 % for acid derivatives and below 0.1 % for organophosphate esters.

Which certifications should a buyer request from this supplier?

Buyers should ask for a current Certificate of Analysis, Safety Data Sheet, and any REACH or TSCA registration documents. ISO 9001 or ISO 14001 certificates are commonly requested for quality‑system verification.

What packaging formats are used for shipment?

Bulk quantities are usually packed in UN‑rated 25 kg fiber drums with inner liners; smaller analytical samples are supplied in HDPE bottles ranging from 500 g to 1 kg. All packaging complies with GHS labeling and UN hazardous‑material regulations.

What are the typical minimum order quantities and lead times?

Minimum order quantities generally start at 500 kg per product, with larger batches up to several tonnes. Lead times for production, quality release, and export documentation are typically 4 to 6 weeks after order confirmation.

Which markets commonly import these types of chemical intermediates from China?

Major importers include the European Union, the United States, Brazil, and Southeast Asian countries such as Vietnam and Thailand, where the intermediates are used in agrochemical formulation and specialty polymer manufacturing.