1. Confirm the chemical identity first

The product listing uses more than one name. It gives the other names as 6-Amino-1,3-dimethyluracil, Uracil and 1,3-dimethyluracil. It lists these identifiers:

Buyer check: Several names are attached to one listing, so check identity by CAS number and molecular formula, not by trade name alone. If your specification, formulation or regulatory file refers to a different CAS number, confirm with the supplier before you request a quotation.

2. Match the listed applications to your use

The listing gives these applications:

• Plasticizer
• Heat stabilizer
• Pharmaceutical intermediates

The product is also listed under the type "Calcium Zinc Stabilizer Additive". The published excerpt describes it as an intermediate suitable for pharmaceutical and fine chemical synthesis.

Buyer check: For PVC work, treat this material as an additive in a calcium-zinc stabilizer system. It is not a complete stabilizer package. Plan your own trials. For pharmaceutical use, find out what grade and documentation your quality system requires. Then confirm that the supplier can provide them.

3. Compare quality specifications

Buyer check: Compare these limits with your incoming inspection criteria. Ask for a batch-specific certificate of analysis. Confirm the test method behind the chromatographic purity figure if your specification uses a different method.

4. Packaging and samples

• Package: 25 kg/bag
• Sample: Listed as available

Buyer check: If your plant handles different pack sizes or needs particular storage conditions, raise this early. Requesting a sample is a sensible step before any qualification trial.

5. Regulatory and management-system documents

The listing names these certifications: EU REACH, Turkey KKDIK, EU RoHS, ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018.

Buyer check: Buyers in Europe and nearby markets should ask for the registration and compliance documents that apply to their own import or use situation. For other regions, such as the United States, the Middle East or Southeast Asia, confirm local regulatory requirements on your own. The listing does not state compliance with those frameworks.

When this product may not be the right choice

• Your specification requires a compound whose CAS number differs from 6642-31-5.
• You need a ready-to-use, complete PVC stabilizer system rather than a stabilizer additive or intermediate.
• Your purity or drying-loss limits are tighter than ≥99.0% and ≤1.0%.
• You need regulatory coverage beyond the certifications listed above.

Information not covered here

Summary checklist

1. Verify CAS 6642-31-5 and formula C6H9N3O2 against your specification.
2. Confirm that your application is a listed use: plasticizer, heat stabilizer or pharmaceutical intermediate.
3. Compare purity (≥99.0%) and loss on drying (≤1.0%) with your acceptance limits.
4. Request a sample and a batch certificate of analysis.
5. Request the regulatory documents that apply to your market.