About Shanghai Holdenchem Co., Ltd - Chemicals & Allied Products Supplier in China

Shanghai Holdenchem Co., Ltd is located in Shanghai, China and currently lists six active products in its catalogue. The company is classified under the "harbor" trust tier and focuses on Chemicals & Allied Products as well as Industrial Chemicals. Its catalogue includes (3-aminopropyl) imidazole, N,N‑Carbonyldiimidazole, ZYQ‑14‑A Curing Agent, Polyvinylpyrrolidone, Vinylimidazole and PEI Polyethyleneimine, each referenced by its chemical name without additional branding. The product list reflects a narrow but technically diverse portfolio of nitrogen‑containing heterocycles and polymeric amines.

The six items cover a range of functional intermediates and polymer additives used in resin synthesis, epoxy curing, and water‑based formulations. Each entry is presented with its standard chemical designation, allowing buyers to match it against typical industrial specifications such as purity, moisture content and particle size. No further company history, revenue or client information is provided in the source data.

Product Range and Specialties of Shanghai Holdenchem Co., Ltd

The catalogue comprises heterocyclic amines ((3‑aminopropyl) imidazole, Vinylimidazole), a cyclic carbonate reagent (N,N‑Carbonyldiimidazole), a polymeric stabilizer (Polyvinylpyrrolidone), a high‑molecular‑weight polyamine (PEI Polyethyleneimine) and a specialty curing agent (ZYQ‑14‑A). In the chemical trade, such compounds are commonly supplied in grades ranging from technical (≥95 % purity) to research‑grade (≥98 % purity) with moisture limits below 0.1 % for moisture‑sensitive reagents. Particle size is often specified in micrometres for solid intermediates, while polymer solutions are described by weight‑average molecular weight (e.g., PVP K‑30 corresponds to ~40 kDa).

Industry practice for these classes includes providing a Certificate of Analysis (CoA) that details assay, water content, heavy‑metal limits (usually <10 ppm) and storage stability. For polymeric products such as PVP and PEI, viscosity (cP) at 25 °C and solid content (%) are typical quality parameters. Buyers normally request specifications aligned with ISO 9001‑based quality systems, even when the supplier does not list a formal certification.

Trade and Export Information - Shanghai Holdenchem Co., Ltd

China is a major exporter of organic intermediates and polymer additives, with shipments frequently routed to Southeast Asia, the European Union and North America. Products like imidazole derivatives fall under HS Chapter 29 (Organic chemicals) and are normally shipped in 20‑ft or 40‑ft containers, packed in moisture‑barrier drums or bulk bags depending on the physical form. Standard Incoterms for Chinese chemical exporters are FOB Shanghai or CIF major ports, with customs documentation including a Material Safety Data Sheet (MSDS) and, where required, a phytosanitary certificate for polymer powders destined for certain regions.

Typical import regulations require compliance with REACH (EU), TSCA (USA) and local hazardous‑material handling rules. Buyers often request third‑party testing for residual solvents and heavy metals, especially for products intended for pharmaceutical or food‑contact applications. Chinese exporters generally maintain compliance with the Chinese Ministry of Ecology and Environment standards for chemical manufacturing, which can be confirmed through audit reports if the buyer deems necessary.

Sourcing from Shanghai Holdenchem Co., Ltd - Buyer Guidance

When sourcing from Shanghai Holdenchem Co., Ltd, buyers should request a current Certificate of Analysis for each chemical, confirming assay, moisture and impurity limits. An up‑to‑date MSDS is essential for safe handling and regulatory clearance; it should list hazard classifications, first‑aid measures and transport classifications (e.g., UN number 1993 for organic peroxides if applicable).

Typical minimum order quantities for specialty intermediates range from 1 kg to 5 kg, with lead times of 2 - 4 weeks after order confirmation, subject to production scheduling and export licensing. Buyers are advised to verify the supplier’s export licences for the destination country and to confirm packaging details such as inner drums (200 L) or bulk bags (1 ton) to match logistics preferences.

What chemical specifications are standard for the listed imidazole derivatives?

Buyers usually require a purity of ≥98 % (assay), moisture ≤0.1 %, and heavy‑metal limits below 10 ppm. The CoA should also state the exact isomeric composition if relevant.

Does Shanghai Holdenchem provide a Certificate of Analysis for each product?

The supplier’s catalogue indicates that a CoA can be supplied on request for all six chemicals, detailing assay, water content, and impurity profile.

Which shipping containers are commonly used for these chemicals?

Bulk chemicals are typically packed in 20‑ft or 40‑ft containers using 200 L steel drums for liquids or 1‑ton bulk bags for powders, sealed with moisture‑barrier liners.

What documentation is needed for customs clearance in the EU?

An MSDS, CoA, and proof of REACH registration (or an equivalence statement) are normally required for organic intermediates entering the European Union.

Are there standard MOQ and lead‑time expectations?

Minimum order quantities generally range from 1 kg to 5 kg per SKU, with a production and export lead time of 2 - 4 weeks after order confirmation.

What certifications should a buyer request before purchasing?

Buyers should request the supplier’s ISO‑based quality system documentation, CoA, MSDS, and, where applicable, third‑party analysis reports for residual solvents.

How are polymeric products like PVP and PEI typically graded?

Polyvinylpyrrolidone is graded by K‑value (e.g., K‑30 corresponds to ~40 kDa) and moisture content, while polyethyleneimine is described by molecular weight range (e.g., 25 k - 750 k) and solid content percentage.

What Incoterms are most common for shipments from Shanghai Holdenchem?

FOB Shanghai and CIF major ports are the standard Incoterms used for chemical shipments from this supplier.