1-Methyl-4-nitro-3-propyl-1H-pyrazole-5-carboxylic acid
- CAS
- 139756-00-6
- Formula
- C8H11N3O4
- MW
- 213.19 g/mol
ZX-022768
API Impurities
5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one
Reference StandardAvailable on request
Order 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one (CAS 139756-21-1) online at Zemixal…
![5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one chemical structure](/media/structures/zx-MXQUEDUMKWBYHI-UHFFFAOYSA-N.svg?v=2)
CAS number139756-21-1
FormulaC17H20N4O2
Molar mass312.37 g/mol
Physical formSolid
HS code38229090
InChIKeyMXQUEDUMKWBYHI-UHFFFAOYSA-N
IUPAC name5-(2-ethoxyphenyl)-1-methyl-3-propyl-6H-pyrazolo[4,5-d]pyrimidin-7-one
About 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one
Zemixal lists 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one for laboratories that identify, quantify or control Sildenafil and its related substances. Identity at a glance (Reference Standard): CAS 139756-21-1, formula C17H20N4O2 and molar mass 312.37 g/mol. It is handled as a solid.
Common uses in the lab and plant
- Analytical method development
- Method validation (AMV)
- QC release testing
- ANDA / DMF filings
Storage and safety notes
Classified under GHS with signal word Warning and hazard statements H315, H319 and H335. Read the SDS before first use.
Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. You receive a certificate of analysis with characterisation data with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Reference standards for Sildenafil
See every impurity, metabolite and related compound we list for this API.
Sildenafil standardsTypical uses
- Analytical method development
- Method validation (AMV)
- QC release testing
- ANDA / DMF filings
Applications
Specifications and identifiers
| Product name | 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one |
|---|---|
| Catalogue number | ZX-022769 |
| CAS number | 139756-21-1 |
| IUPAC name | 5-(2-ethoxyphenyl)-1-methyl-3-propyl-6H-pyrazolo[4,5-d]pyrimidin-7-one |
| Molecular formula | C17H20N4O2 |
| Molar mass | 312.37 g/mol |
| Exact mass | 312.1586 |
| Grade | Reference Standard |
| Physical form | Solid |
| XLogP3 | 2.5 |
| H-bond donors / acceptors | 1 / 4 |
| Topological polar surface area | 68.5 Ų |
| HS code | 38229090 |
| InChIKey | MXQUEDUMKWBYHI-UHFFFAOYSA-N |
| SMILES | CCCC1=NN(C2=C1N=C(NC2=O)C3=CC=CC=C3OCC)C |
| PubChem CID | 135401477 |
| Synonyms | 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone, 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo(4,3-d)-7-pyrimidinone, 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one, Imidazosagatriazinone, PDE5-IN-7, 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-6H-pyrazolo[4,3-d]pyrimidin-7-one, 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone, 5-(2-ethoxyphenyl)-1-methyl-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one, 5-(2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7h-pyrazolo[4,3-d]pyrimidin-7-one, 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-(2-ethoxyphenyl)-1,6-dihydro-1-methyl-3-propyl- |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 10 mg | Quoted on request | |
| 25 mg | Quoted on request | |
| 50 mg | Quoted on request | |
| 100 mg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one
Which CAS number identifies 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one?
5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one is registered under CAS 139756-21-1. You may also see it listed as 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone, 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo(4,3-d)-7-pyrimidinone, 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one. Our catalogue number for this item is ZX-022769.
What are the formula and molar mass of 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one?
For 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one, its formula is C17H20N4O2 and its molar mass is 312.37 g/mol. The systematic (IUPAC) name is 5-(2-ethoxyphenyl)-1-methyl-3-propyl-6H-pyrazolo[4,5-d]pyrimidin-7-one. InChIKey MXQUEDUMKWBYHI-UHFFFAOYSA-N lets you match it in any structure database.
How is 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one used in pharmaceutical QC?
5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one is a characterised reference material linked to Sildenafil. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one to my country?
Yes. Because 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro- 7H-pyrazolo[4,3-d]pyrimidin-7-one is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.
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