About Shanghai Extd Sci And Tech Co., Ltd - Agriculture Supplier in China

Shanghai Extd Sci And Tech Co., Ltd is located in China and currently lists six active products in its catalogue. The company’s catalogue contains two entries for Zoledronic acid (CAS 118072-93-8), as well as single entries for 3,5-Di-tert-butyl-4-hydroxybenzaldehyde, 2-Chloro-4-Amino-6,7-Dimethoxy Quinazoline, 2,4-Dihydroxy-6,7-Dimethoxy Quinazoline, and 3-(methyl amino)-propionitrile (CAS 693-05-0). Each product is presented by its chemical name and CAS number, indicating a focus on pure chemical compounds rather than formulated mixtures. The supplier is classified under the Agriculture category, suggesting the chemicals may serve research or formulation needs in agricultural chemistry or related biotech fields.

The listed chemicals belong to organic synthesis and pharmaceutical intermediate groups, which are commonly used in laboratory research, crop protection development, and drug discovery projects. No additional product specifications such as purity level or physical form are provided in the catalogue, so buyers must request detailed technical data. The presence of two identical Zoledronic acid entries may reflect different packaging sizes or grades, a typical practice in chemical supply listings.

Product Range and Specialties of Shanghai Extd Sci And Tech Co., Ltd

The catalogue covers six distinct organic compounds. Zoledronic acid is a bisphosphonate typically supplied as a white crystalline powder with purity grades of 98 % - 99 % for research use, and it is often packaged in 25 g or 100 g sealed containers. 3,5-Di-tert-butyl-4-hydroxybenzaldehyde is an aromatic aldehyde used as an antioxidant precursor; standard grades range from 95 % to 99 % purity and are supplied in amber glass bottles to protect against light. The quinazoline derivatives (2‑Chloro‑4‑Amino‑6,7‑Dimethoxy Quinazoline and 2,4‑Dihydroxy‑6,7‑Dimethoxy Quinazoline) are heterocyclic intermediates that are usually offered at ≥98 % purity, often as powders or solid blocks. 3‑(Methyl amino)‑propionitrile is a nitrile intermediate commonly provided with ≥99 % purity in sealed vials. Industry standards for these types of chemicals include providing a Certificate of Analysis (COA), Material Safety Data Sheet (MSDS), and, where applicable, validation of sterility or endotoxin levels for pharmaceutical‑grade batches.

Trade and Export Information - Shanghai Extd Sci And Tech Co., Ltd

Specialty chemicals from China are classified under HS Chapter 29 (organic chemicals) for customs purposes, and exporters typically prepare commercial invoices, packing lists, COA, and MSDS for each shipment. Buyers in North America, Europe, and the Asia‑Pacific region frequently import such intermediates for formulation in agro‑chemicals, nutraceuticals, and pharmaceutical research. Commonly required certifications include ISO 9001 quality management, GMP compliance for pharmaceutical intermediates, and REACH registration for the European market. Shipping is usually performed in 20‑ft or 40‑ft containers with inner packaging of sealed polyethylene bags or glass bottles, and Incoterms such as FOB Shanghai or CIF destination are standard. Chinese export authorities may request an export license for certain controlled substances, so verification of the chemical’s regulatory status is advisable before shipment.

Sourcing from Shanghai Extd Sci And Tech Co., Ltd - Buyer Guidance

When sourcing from this supplier, request a recent Certificate of Analysis that specifies assay, impurity profile, moisture content, and residual solvent levels for each compound. Buyers should also obtain the Material Safety Data Sheet to confirm handling, storage, and transport requirements, especially for bisphosphonates and nitrile compounds that may have specific safety classifications. Verify whether the supplier can provide ISO 9001 or GMP documentation if the end use is pharmaceutical; the absence of such certifications should be clarified before order confirmation. Samples in small quantities (e.g., 5 g to 10 g) are customary for analytical verification, and lead times for specialty chemicals from China typically range from 2 to 4 weeks after order receipt, depending on stock availability and export clearance.

What purity levels are typically offered for the chemicals listed by Shanghai Extd Sci And Tech Co., Ltd?

Purity levels for research‑grade intermediates such as Zoledronic acid, quinazoline derivatives, and aromatic aldehydes generally range from 95 % to 99 %, with most suppliers providing ≥98 % assay on the Certificate of Analysis.

Which documents should a buyer request before placing an order?

Buyers should request a current Certificate of Analysis, Material Safety Data Sheet, and, if needed for pharmaceutical applications, ISO 9001 or GMP certificates. Additional export permits may be required for controlled substances.

Are the listed products packaged for bulk shipment or smaller retail quantities?

The catalogue does not specify packaging, but typical Chinese exporters offer both bulk bulk bags (e.g., 25 kg) and smaller sealed containers (e.g., 25 g or 100 g vials) to accommodate diverse buyer needs.

What HS code chapter applies to these chemical compounds?

These organic compounds fall under HS Chapter 29, which covers organic chemicals, and customs declarations are usually made using the specific sub‑heading for each CAS‑identified substance.

Which regions commonly import these types of specialty chemicals from China?

North America, the European Union, and the Asia‑Pacific region are the primary import markets for Chinese specialty chemicals used in agricultural research, pharmaceutical development, and advanced material synthesis.

What are typical lead times for shipping these chemicals from China?

Lead times are commonly 2 - 4 weeks after order confirmation, depending on stock levels, required documentation, and customs clearance procedures.

How should a buyer verify the regulatory status of a compound like Zoledronic acid?

Buyers should check the compound’s classification under local drug and chemical regulations, request the supplier’s export license information, and confirm that the product complies with REACH or other regional chemical safety frameworks.

What packaging considerations are important for shipping nitrile compounds such as 3‑(methyl amino)‑propionitrile?

Nitrile compounds should be packed in sealed, chemically compatible containers (e.g., high‑density polyethylene) with secondary containment to prevent leakage, and the MSDS will outline any additional transport restrictions.