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Pharmaceutical Secondary Standard; Certified Reference Material

Empirical Formula (Hill Notation):
CAS Number:
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Quality Level


certified reference material
pharmaceutical secondary standard


current certificate can be downloaded


HPLC: suitable
gas chromatography (GC): suitable


pharmaceutical (small molecule)



pharmacopeia traceability

traceable to PhEur C1905000
traceable to USP 1126009

storage temp.


SMILES string




InChI key


Gene Information

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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. Chlorpropamide belongs to the sulfonylurea class of drugs and is found to be clinically effective in the treatment of Diabetes mellitus (DM). Its mode of action involves the stimulation of insulin release from the β-cells of the pancreas in response to a glucose load. It helps in increasing the number of insulin receptors, thereby enhancing the effect of insulin on the liver and promotes peripheral glucose utilization.


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.
Chlorpropamide may be used as a pharmaceutical reference standard for the quantification of the analyte in pharmaceutical formulations using capillary zone elctrophoresis technique and spectrophotometric technique.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP 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.


To see an example of a Certificate of Analysis for this material enter LRAA0019 in the slot below. This is an example certificate only and may not be the lot that you receive.


Exclamation markHealth hazard

Signal Word


Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Repr. 2 - STOT RE 2

Storage Class Code

13 - Non Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Stephan P Tenbaum et al.
Nature medicine, 18(6), 892-901 (2012-05-23)
The Wnt–β-catenin and PI3K-AKT-FOXO3a pathways have a central role in cancer. AKT phosporylates FOXO3a, relocating it from the cell nucleus to the cytoplasm, an effect that is reversed by PI3K and AKT inhibitors. Simultaneous hyperactivation of the Wnt–β-catenin pathway and
Spectrophotometric Determination of Chlorpropamide in Bulk and Dosage Form by Complexation with Chloranilic Acid
Mbah JC and Okorie HN
Journal of Scientific Research, 3(1), 2126-2133 (2011)
Qing Zhu et al.
Molecular pharmaceutics, 7(4), 1291-1300 (2010-06-17)
As a result of an increase in the number of emerging therapies with dissolution limited bioavailability, formulation strategies such as solid dispersions that enhance the rate of solubilization are of interest. In this study, the microstructure of solid dispersions prepared
Tsutomu Shimura et al.
International journal of radiation oncology, biology, physics, 80(2), 540-548 (2011-03-15)
Radioresistance is a major cause of treatment failure of radiotherapy (RT) in human cancer. We have recently revealed that acquired radioresistance of tumor cells induced by fractionated radiation is attributable to cyclin D1 overexpression as a consequence of the downregulation
Yury V Seryotkin et al.
Acta crystallographica. Section B, Structural science, 69(Pt 1), 77-85 (2013-02-01)
The crystal structure of the high-pressure polymorph (α') of an antidiabetic drug, chlorpropamide [4-chloro-N-(propylaminocarbonyl)benzenesulfonamide, C(10)H(13)ClN(2)O(3)S], which is formed at ~2.8 GPa from the α-polymorph (P2(1)2(1)2(1)) on hydrostatic compression in saturated ethanol solution, has been determined. As a result of the

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