1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one
Synonyms: 1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one · 1,2,4-Triazolo(4,3-a)pyridin-3(2H)-one · 3-Hydroxytriazolo[4,3-a]pyridine · [1,2,4]Triazolo[4,3-a]pyridin-3(2H)-one
1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one (CAS 6969-71-7) – Trazodone impurity standard. C6H5N3O, MW 135.12. Vaqora Chemicals: COA, global shipping.
About 1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one
1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one is an impurity of Trazodone carrying the CAS registry number 6969-71-7. With the molecular formula C6H5N3O, it has a molar mass of 135.12 g/mol. Its systematic (IUPAC) name is 2H-[1,2,4]triazolo[4,3-a]pyridin-3-one. It is also known as 1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one or 1,2,4-Triazolo(4,3-a)pyridin-3(2H)-one.
It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. It carries the GHS signal word “Warning” with 4 hazard statements. Review the Safety Data Sheet before use.
As a characterised impurity of Trazodone, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.
Vaqora Chemicals supplies 1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.
Typical applications
- Analytical method development
- Method validation (AMV)
- QC release testing
- ANDA / DMF filings
Industries
View every impurity, metabolite and intermediate we list for Trazodone.
Trazodone impuritiesSpecifications & identifiers
| Product name | 1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one |
|---|---|
| Catalogue No. | VQ-028484 |
| CAS Number | 6969-71-7 |
| IUPAC name | 2H-[1,2,4]triazolo[4,3-a]pyridin-3-one |
| Molecular formula | C6H5N3O |
| Molecular weight | 135.12 g/mol |
| Exact mass | 135.0433 |
| Grade | Reference Standard |
| HSN code | 38229090 |
| InChIKey | LJRXNXBFJXXRNQ-UHFFFAOYSA-N |
| SMILES | C1=CC2=NNC(=O)N2C=C1 |
| PubChem CID | 81431 |
| Physical form | Solid |
|---|---|
| H-bond donors / acceptors | 1 / 2 |
| TPSA | 44.7 Ų |
| Synonyms | 1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one, 1,2,4-Triazolo(4,3-a)pyridin-3(2H)-one, 3-Hydroxytriazolo[4,3-a]pyridine, [1,2,4]Triazolo[4,3-a]pyridin-3(2H)-one, [1,2,4]triazolo[4,3-a]pyridin-3-ol, 2H,3H-[1,2,4]triazolo[4,3-a]pyridin-3-one, 1,2,4-triazolo[4,3-a]pyridin-3-ol, s-Triazolo[4,3-a]pyridin-3-ol, 4-hydro-2H-1,2,4-triazolino[4,3-a]pyridin-3-one, 124-Triazolo[43-a]pyridin-3(2H)-one, 1,2,3a-triaza-3-indenol |
Safety & hazard information (GHS)
Signal word: Warning
Hazard statements
H315Causes skin irritationH319Causes serious eye irritationH335May cause respiratory irritationH412Harmful to aquatic life with long lasting effects
Precautionary statements: P261, P264, P264 + P265, P271, P273, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + 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 1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one?
The CAS Registry Number of 1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one is 6969-71-7. It is also known as 1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one, 1,2,4-Triazolo(4,3-a)pyridin-3(2H)-one, 3-Hydroxytriazolo[4,3-a]pyridine.
What is the molecular formula and molecular weight of 1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one?
1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one has the molecular formula C6H5N3O and a molecular weight of 135.12 g/mol. Its IUPAC name is 2H-[1,2,4]triazolo[4,3-a]pyridin-3-one.
What is 1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one used for?
1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one is supplied as a characterised reference material related to Trazodone. 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 1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one can I order?
We supply 1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one 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 1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one?
Yes. Every lot of 1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one 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 1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one be shipped internationally?
Yes. 1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one 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.
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