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Merck
CN

PHR3309

Doxazosin Related Compound E

certified reference material, pharmaceutical secondary standard

Synonym(s):

2,4-Dichloro-6,7-dimethoxyquinazoline

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About This Item

Empirical Formula (Hill Notation):
C10H8Cl2N2O2
CAS Number:
27631-29-4
Molecular Weight:
259.09
UNSPSC Code:
41116107
NACRES:
NA.24
MDL number:
MFCD00051733

Key Documents

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InChI

1S/C10H8Cl2N2O2/c1-15-7-3-5-6(4-8(7)16-2)13-10(12)14-9(5)11/h3-4H,1-2H3

SMILES string

COc1cc2nc(Cl)nc(Cl)c2cc1OC

InChI key

DGHKCBSVAZXEPP-UHFFFAOYSA-N

grade

certified reference material, pharmaceutical secondary standard

agency

traceable to USP 1225474

packaging

pkg of 50 mg

mp

175-178 °C (lit.)

application(s)

pharmaceutical

storage temp.

2-8°C

Quality Level

300

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General description

Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards

Application

These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Analysis Note

These secondary standards offer multi-traceability to the USP and EP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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