About Zhangjiagang Clent Chemical Co., Ltd - Chemicals & Allied Products Supplier in China

China‑based Zhangjiagang Clent Chemical Co., Ltd lists eleven active chemical products in its catalogue. The company classifies these items under the categories Chemicals & Allied Products and Industrial Chemicals, reflecting a focus on fine‑chemical and pharmaceutical intermediates. The product list includes organic acids, antibacterial agents, anti‑inflammatory compounds and specialty heterocyclic reagents, each identified with HS codes that span from 2930.90 to 3001.90. The HS‑code families indicate the goods belong to the fine chemicals and pharmaceutical preparations chapters of the customs tariff. Where provided, each entry states the molecular formula and a minimum assay, typically 99% or higher, underscoring the high‑purity nature of the offerings.

Product Range and Specialties of Zhangjiagang Clent Chemical Co., Ltd

The catalogue comprises 3‑Mercaptopropionic Acid (HS 2930.90, C3H6O2S, assay ≥ 99 %), Heparin Sodium (HS 3001.90, glycosaminoglycan polysaccharide), L(+)-Ascorbic Acid and Sodium Ascorbate (both HS 2936.27, C6H8O6 and C6H7NaO6 respectively) and several pharmaceutical intermediates such as 2,2‑Dipyridyl (HS 2933.39, C10H8N2), Climbazole (HS 2933.19, C15H17ClN2O2, 99 % min purity), Diclofenac Potassium (HS 2933.59, C14H13Cl2KO2), Oxytetracycline Hydrochloride (HS 2941.90) and Tetracycline Hydrochloride (HS 2941.30). Two additional compounds, 2‑aminothiazole and 9‑phenylacridine, are listed without HS codes. In the fine‑chemical market, acids such as L‑ascorbic acid are commonly supplied in USP or EP grades with ICUMSA 45 specifications, while sodium ascorbate is offered as food‑grade or pharmaceutical‑grade material. Antibiotic salts like oxytetracycline and tetracycline are typically sold with assay 98‑100 %, moisture < 0.5 % and impurity limits defined by USP monographs. Anti‑inflammatory agents such as diclofenac potassium are generally provided as crystalline powder meeting particle‑size ranges of 10‑50 µm and purity ≥ 99 %. Heterocyclic reagents (e.g., 2,2‑dipyridyl, climbazole) are offered in analytical or technical grades with residual‑solvent specifications per EP Chapter 3.5.

Trade and Export Information - Zhangjiagang Clent Chemical Co., Ltd

China is a major exporter of fine chemicals, and its shipments of pharmaceutical intermediates are routinely directed to North America, the European Union, Japan and Southeast Asian markets. The HS‑code families present in this catalogue (2930‑2939, 2936, 2941 and 3001) are subject to standard customs documentation, often requiring a Certificate of Origin, a detailed Commercial Invoice and a Material Safety Data Sheet. Buyers typically request certifications such as ISO 9001 quality‑management, ISO 14001 environmental compliance and GMP compliance for pharmaceutical‑grade chemicals; these are not confirmed for this supplier but are standard expectations in the sector. Common Incoterms for Chinese chemical exporters include FOB Shanghai or Ningbo and CIF to major ports in Europe or the United States. Export packaging usually involves 25 kg HDPE drums sealed in 20‑ft containers, with moisture‑barrier liners for hygroscopic compounds such as ascorbic acid. Regulatory controls may apply to certain active pharmaceutical ingredients, requiring export licenses or end‑use declarations under the Wassenaar Arrangement.

Sourcing from Zhangjiagang Clent Chemical Co., Ltd - Buyer Guidance

When sourcing from Zhangjiagang Clent Chemical Co., Ltd, request a current Certificate of Analysis for each batch, a full Material Safety Data Sheet, and any GMP or ISO certificates the supplier can provide. Verify that the assay, impurity profile and moisture content match the typical specifications cited for each chemical class before confirming a purchase. Confirm packaging details (e.g., 25 kg drums, inner liners) and ensure that the HS code on the commercial invoice aligns with the product’s classification. Buyers should also check for any export‑control restrictions on the listed pharmaceutical intermediates and arrange for a sample - usually 100 g - to validate purity and physical properties prior to full‑scale orders. Typical minimum order quantities range from 5 kg for high‑purity reagents to 20 kg for bulk acids, with lead times of 30‑45 days after order confirmation.

What HS codes are assigned to the products in the catalogue?

The listed chemicals use the following HS codes: 3‑Mercaptopropionic Acid - 2930.90; Heparin Sodium - 3001.90; L(+)-Ascorbic Acid and Sodium Ascorbate - 2936.27; 2,2‑Dipyridyl - 2933.39; Climbazole - 2933.19; Diclofenac Potassium - 2933.59; Oxytetracycline Hydrochloride - 2941.90; Tetracycline Hydrochloride - 2941.30. Two items (2‑aminothiazole and 9‑phenylacridine) have no HS code provided.

Which certifications should a buyer request for pharmaceutical‑grade chemicals?

Buyers normally request a Certificate of Analysis, an MSDS, and proof of GMP compliance for pharmaceutical intermediates. Additional quality‑system certificates such as ISO 9001 or ISO 14001 are common, but the buyer must confirm whether the supplier holds them.

What purity levels are typical for the acids and antibiotics listed?

The catalogue specifies a minimum assay of 99 % for 3‑Mercaptopropionic Acid, L(+)-Ascorbic Acid and Sodium Ascorbate. Antibiotic salts such as Oxytetracycline Hydrochloride and Tetracycline Hydrochloride are generally supplied with assay ≥ 98 % and moisture < 0.5 %.

How are the chemicals packaged for international shipment?

Fine chemicals from China are usually packed in 25 kg high‑density‑polyethylene drums, placed inside moisture‑barrier liners, and loaded into 20‑ft or 40‑ft containers. The packaging complies with UN 2010 recommendations for non‑hazardous solid chemicals.

What lead time can a buyer expect for a bulk order?

Typical production and export lead times for the listed fine chemicals range from 30 to 45 days after order confirmation and receipt of the required deposit. Lead time may vary with product complexity and regulatory approvals.

What is the minimum order quantity for these high‑purity intermediates?

Most of the catalogue items have a minimum order quantity of about 5 kg per SKU, although bulk acids or salts may be ordered in larger increments such as 20 kg. The exact MOQ should be confirmed for each specific product.

How can a buyer obtain a sample before placing a full order?

A buyer can request a 100 g sample of any listed chemical. The supplier will ship the sample via express courier after receiving a nominal fee and a signed non‑disclosure agreement, providing a COA with the sample.