Molekula
Doxazosin Related Compound B - USP CRS
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Doxazosin Related Compound B - USP CRS is a reference standard used for analytical validation in pharmaceutical testing, particularly in the development and quality control of doxazosin-related compounds. It serves as a calibration and identification marker in chromatographic and spectroscopic assays. This chemical has the CAS number 28888-44-0, a molecular formula of C10H10N2O4, and a molecular weight of 222.20 g/mol. Store it between 2°C and 8°C. The signal word for this compound is *Warning*, indicating moderate hazard. Molekula supplies Doxazosin Related Compound B - USP CRS from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | White solid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90036569 |
| CAS Number | 28888-44-0 |
| IUPAC Name | 6,7-dimethoxy-1H-quinazoline-2,4-dione |
| EC Number | 249-288-1 |
| Molecular Formula | C10H10N2O4 |
| Molecular Weight | 222.20 |
| Exact Mass | 222.0641 |
| SMILES | COC1=C(C=C2C(=C1)C(=O)NC(=O)N2)OC |
| InChIKey | KWNQIIMVPSMYEM-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H10N2O4/c1-15-7-3-5-6(4-8(7)16-2)11-10(14)12-9(5)13/h3-4H,1-2H3,(H2,11,12,13,14) |
| PubChem CID | 120081 |
| REACH Code | Y110 |
| HTS Code | 29335995 |
| Tariff Code | 2933599590 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P333+313 IF skin irritation or a rash occurs: Get medical advice/attention
- P337+313 If eye irritation persists get medical advice/attention
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 2,4-Dihydroxy-6,7-dimethoxyquinazoline
- 2,4(1H,3H)-Quinazolinedione, 6,7-dimethoxy-
- 6,7-dimethoxy-1,2,3,4-tetrahydroquinazoline-2,4-dione
- 6,7-dimethoxy-1H-quinazoline-2,4-dione
- 6,7-Dimethoxy-2,4-quinazolinedione
- 6,7-Dimethoxy-2,4(1H,3H)-quinazolinedione
- 6,7-dimethoxyquinazoline-2,4-diol
- 6,7-Dimethoxyquinazoline-2,4-dione
- 6,7-Dimethoxyquinazoline-2,4(1H,3H)-dione
Frequently asked questions
What is Doxazosin Related Compound B (CAS 28888-44-0) used for?
This compound is primarily used as a **USP Certified Reference Standard (CRS)** for analytical validation, method development, and quality control in pharmaceutical testing of doxazosin-related substances.
What is the molecular formula and molecular weight of this compound?
The molecular formula is **C₁₀H₁₀N₂O₄**, and the molecular weight is **222.20 g/mol**.
How should Doxazosin Related Compound B be stored?
Store at **2 to 8°C** in a cool, dry place, protected from light and moisture. Follow standard laboratory chemical handling practices.
What grade is available for this compound?
This product is supplied as a **USP Certified Reference Standard (CRS)**, meeting strict purity and documentation requirements for regulatory compliance.
Can Molekula supply this compound in bulk quantities?
Bulk availability depends on demand and inventory—please contact our sales team for custom quotes and lead times for larger quantities.
What documentation comes with the order?
Each order includes a **Certificate of Analysis (CoA)**, **Safety Data Sheet (SDS)**, and **USP CRS documentation** confirming purity and compliance.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.