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VAQORA2,3,5,6-Tetraphenylpyrazine
Synonyms: Oxaprozin Tetraphenylpyrazine · tetraphenylpyrazine · pyrazine, 2,3,5,6-tetraphenyl- · Pyrazine, tetraphenyl-
CAS No.642-04-6
FormulaC28H20N2
Mol. weight384.50
Catalogue No.VQ-032996
PurityReference Standard
HSN38229090
2,3,5,6-Tetraphenylpyrazine (CAS 642-04-6) – Oxaprozin impurity standard. C28H20N2, MW 384.5. Supplied by Vaqora Chemicals with COA, exported worldwide.
Pack sizesPrice on quotation · bulk available
10 mg
25 mg
50 mg
100 mg
Bulk / custom pack · kg to MT
Enquire Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing
About 2,3,5,6-Tetraphenylpyrazine
2,3,5,6-Tetraphenylpyrazine (CAS 642-04-6) is an impurity of Oxaprozin offered by Vaqora Chemicals. Formula C28H20N2, molecular weight 384.5 g/mol. It is also known as Oxaprozin Tetraphenylpyrazine or tetraphenylpyrazine.
The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.
This Oxaprozin impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.
Available in 10 mg, 25 mg, 50 mg and 100 mg packs, 2,3,5,6-Tetraphenylpyrazine is dispatched with a Certificate of Analysis (COA) to destinations worldwide.
Typical applications
- Analytical method development
- Method validation (AMV)
- QC release testing
- ANDA / DMF filings
Industries
Related to Oxaprozin
View every impurity, metabolite and intermediate we list for Oxaprozin.
Oxaprozin impuritiesSpecifications & identifiers
| Product name | 2,3,5,6-Tetraphenylpyrazine |
|---|---|
| Catalogue No. | VQ-032996 |
| CAS Number | 642-04-6 |
| IUPAC name | 2,3,5,6-tetraphenylpyrazine |
| Molecular formula | C28H20N2 |
| Molecular weight | 384.5 g/mol |
| Exact mass | 384.1626 |
| Grade | Reference Standard |
| HSN code | 38229090 |
| InChIKey | ZPKCJXWKXAHCSX-UHFFFAOYSA-N |
| SMILES | C1=CC=C(C=C1)C2=C(N=C(C(=N2)C3=CC=CC=C3)C4=CC=CC=C4)C5=CC=CC=C5 |
| PubChem CID | 275938 |
| Physical form | Solid |
|---|---|
| LogP (XLogP3) | 6.4 |
| H-bond donors / acceptors | 0 / 2 |
| TPSA | 25.8 Ų |
| Synonyms | Oxaprozin Tetraphenylpyrazine, tetraphenylpyrazine, pyrazine, 2,3,5,6-tetraphenyl-, Pyrazine, tetraphenyl-, amarone, benzoin imide, 2,3,5,6-tetraphenylpyrazine (alpha form) |
Safety & hazard information (GHS)
Signal word: Danger
Hazard statements
H302Harmful if swallowedH315Causes skin irritationH318Causes serious eye damageH335May cause respiratory irritationH413May cause long lasting harmful effects to aquatic life
Precautionary statements: P261, P264, P264 + P265, P270, P271, P273, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P354 + P338, P317, P319, P321, P330, P332 + P317, P362 + P364, P403 + P233, P405, P501
Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.
Documents
Frequently asked questions
What is the CAS number of 2,3,5,6-Tetraphenylpyrazine?
The CAS Registry Number of 2,3,5,6-Tetraphenylpyrazine is 642-04-6. It is also known as Oxaprozin Tetraphenylpyrazine, tetraphenylpyrazine, pyrazine, 2,3,5,6-tetraphenyl-.
What is the molecular formula and molecular weight of 2,3,5,6-Tetraphenylpyrazine?
2,3,5,6-Tetraphenylpyrazine has the molecular formula C28H20N2 and a molecular weight of 384.5 g/mol. Its IUPAC name is 2,3,5,6-tetraphenylpyrazine.
What is 2,3,5,6-Tetraphenylpyrazine used for?
2,3,5,6-Tetraphenylpyrazine is supplied as a characterised reference material related to Oxaprozin. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.
Which grade and pack sizes of 2,3,5,6-Tetraphenylpyrazine can I order?
We supply 2,3,5,6-Tetraphenylpyrazine in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.
Do you provide a COA and SDS with 2,3,5,6-Tetraphenylpyrazine?
Yes. Every lot of 2,3,5,6-Tetraphenylpyrazine is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.
Can 2,3,5,6-Tetraphenylpyrazine be shipped internationally?
Yes. 2,3,5,6-Tetraphenylpyrazine is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.
Enquire about 2,3,5,6-Tetraphenylpyrazine
We reply within one business day with price, pack options, lead time and documentation.
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