4-Amino-2-chloro-6,7-dimethoxyquinazoline, 98%
- CAS
- 23680-84-4
- Formula
- C10H10ClN3O2
- MW
- 239.66 g/mol
ZX-008385
Pharmacopeial Impurities (EP / USP / BP)
Prazosin EP Impurity A
Reference StandardIn stock
Prazosin EP Impurity A (CAS 23680-84-4) supplier Zemixal: C10H10ClN3O2, COA and SDS with every lot, worldwide shipping. Packs from 10 mg.
CAS number23680-84-4
FormulaC10H10ClN3O2
Molar mass239.66 g/mol
Physical formSolid
HS code38229090
InChIKeyHWIIAAVGRHKSOJ-UHFFFAOYSA-N
IUPAC name2-chloro-6,7-dimethoxyquinazolin-4-amine
About Prazosin EP Impurity A
Analytical teams working on Prazosin use Prazosin EP Impurity A as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 23680-84-4, formula C10H10ClN3O2 and molar mass 239.66 g/mol. It is handled as a solid.
Use cases we see most often
- Pharmacopeial method verification
- Impurity profiling
- QC release testing
- ANDA / DMF filings
Safe handling
It carries the GHS signal word Warning (H302, H315, H319 and H335), so wear gloves and eye protection and work with good ventilation.
Standard pack sizes are 10 mg, 25 mg, 50 mg, 100 mg and 250 mg, and custom quantities are quoted on request. 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 Prazosin
See every impurity, metabolite and related compound we list for this API.
Prazosin standardsTypical uses
- Pharmacopeial method verification
- Impurity profiling
- QC release testing
- ANDA / DMF filings
Applications
Grade guides
Specifications and identifiers
| Product name | Prazosin EP Impurity A |
|---|---|
| Catalogue number | ZX-005908 |
| CAS number | 23680-84-4 |
| IUPAC name | 2-chloro-6,7-dimethoxyquinazolin-4-amine |
| Molecular formula | C10H10ClN3O2 |
| Molar mass | 239.66 g/mol |
| Exact mass | 239.0462 |
| Grade | Reference Standard |
| Physical form | Solid |
| XLogP3 | 2.2 |
| H-bond donors / acceptors | 1 / 5 |
| Topological polar surface area | 70.3 Ų |
| HS code | 38229090 |
| InChIKey | HWIIAAVGRHKSOJ-UHFFFAOYSA-N |
| SMILES | COC1=C(C=C2C(=C1)C(=NC(=N2)Cl)N)OC |
| PubChem CID | 90235 |
| Synonyms | 2-Chloro-6,7-dimethoxy-4-quinazolinamine, 2-Chloro-6,7-dimethoxy-quinazolin-4-ylamine, 4-Amino-2-chloro-6,7-dimethoxyquinazoline, 2-Chloro-4-amino-6,7-dimethoxyquinazoline, 4-Quinazolinamine, 2-chloro-6,7-dimethoxy-, 2-chloro-6,7-dimethoxy-quinazolin-4-amine, 2-chloro-6,7-dimethoxyquinazolin-4-ylamine, 2-chloro-6,7-dimethoxyquinazoline-4-ylamine, quinazolinamine, 2-chloro-4-amino-6,7-dimethoxy quinazoline, 2-chloro-4-amino-6,7-dimethoxy-quinazoline, Doxazosin EP Impurity F |
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
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H373May causes damage to organs through prolonged or repeated exposure
Precautionary statements P260, P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, 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 | |
| 250 mg | Quoted on request | |
| 500 mg | Quoted on request | |
| 1 g | 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 Prazosin EP Impurity A
Which CAS number identifies Prazosin EP Impurity A?
Prazosin EP Impurity A is registered under CAS 23680-84-4. You may also see it listed as 2-Chloro-6,7-dimethoxy-4-quinazolinamine, 2-Chloro-6,7-dimethoxy-quinazolin-4-ylamine, 4-Amino-2-chloro-6,7-dimethoxyquinazoline. Our catalogue number for this item is ZX-005908.
What are the formula and molar mass of Prazosin EP Impurity A?
For Prazosin EP Impurity A, its formula is C10H10ClN3O2 and its molar mass is 239.66 g/mol. The systematic (IUPAC) name is 2-chloro-6,7-dimethoxyquinazolin-4-amine. InChIKey HWIIAAVGRHKSOJ-UHFFFAOYSA-N lets you match it in any structure database.
How is Prazosin EP Impurity A used in pharmaceutical QC?
Prazosin EP Impurity A is a characterised reference material linked to Prazosin. 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 Prazosin EP Impurity A?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Prazosin EP Impurity A?
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 Prazosin EP Impurity A to my country?
Yes. Because Prazosin EP Impurity A 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.
Other grades with CAS 23680-84-4
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