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PHR1145 Supelco

Doxycycline hyclate

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym: Doxycycline hydrochloride hemiethanolate hemihydrate

  • CAS Number 24390-14-5

  • Empirical Formula (Hill Notation) C22H24N2O8 · HCl · 0.5H2O · 0.5C2H6O

  • Molecular Weight 512.94

  •  Beilstein/REAXYS Number 5702728

  •  MDL number MFCD07357237

  •  PubChem Substance ID 329823165



Related Categories Analytical Standards, Analytical/Chromatography, C-D, Pharmaceutical Secondary Standards, Pharmacopeia & Metrological Institutes Standards More...
Quality Level   300
grade   certified reference material
  pharmaceutical secondary standard
form   neat
application(s)   HPLC: suitable
  gas chromatography (GC): suitable
Featured Industry   Pharmaceutical (small molecule)
format   neat
pharmacopeia traceability   traceable to BP 780
  traceable to PhEur D3000000
  traceable to USP 1226003
storage temp.   −20°C
SMILES string   Cl[H].Cl[H].[H]O[H].CCO.C[C@@H]1C2[C@H](O)C3[C@H](N(C)C)C(O)=C(C(N)=O)C(=O)[C@@]3(O)C(O)=C2C(=O)c4c(O)cccc14.C[C@@H]5C6[C@H](O)C7[C@H](N(C)C)C(O)=C(C(N)=O)C(=O)[C@@]7(O)C(O)=C6C(=O)c8c(O)cccc58
InChI   1S/2C22H24N2O8.C2H6O.2ClH.H2O/c2*1-7-8-5-4-6-9(25)11(8)16(26)12-10(7)17(27)14-15(24(2)3)18(28)13(21(23)31)20(30)22(14,32)19(12)29;1-2-3;;;/h2*4-7,10,14-15,17,25,27-29,32H,1-3H3,(H2,23,31);3H,2H2,1H3;2*1H;1H2/t2*7-,10?,14?,15-,17-,22-;;;;/m00..../s1


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.
Doxycycline, the semi-synthetic analog of tetracycline, is a broad-spectrum antibiotic employed in medicine and veterinary applications, is known for its action against a huge range of gram positive and gram negative bacteria. It is prescribed against infections spread by rickettsiae, mycoplasmas and chlamydiae.


Doxycycline hyclate may be used as a pharmaceutical reference standard for the determination of the analyte in pharmaceutical formulations and biological samples by various chromatography and spectrophotometric techniques.

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.

Biochem/physiol Actions

Doxycycline hyclate inhibits the inflammatory response to the Lyme Disease Spirochete Borrelia burgdorferi. It is a broad spectrum inhibitor of matrix metalloproteinases in vivo.

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.

Values of analytes vary lot to lot.


To see an example of a Certificate of Analysis for this material enter LRAC0269 in the slot below. This is an example certificate only and may not be the lot that you receive.

Safety & Documentation

Safety Information

GHS07  GHS07
Signal word 
Hazard statements 
Target organs 
Respiratory system
NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

Please Enter a Lot Number

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
Is doxycycline hyclate soluble in DMSO?
According to literature sources, doxycycline hyclate is soluble in DMSO at a concentration of 100 mM.
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Protocols & Articles


LC/MS/MS Analysis of Tetracycline Antibiotics on Kromasil® Eternity™ C18

From our library of Articles, Sigma-Aldrich presents LC/MS/MS Analysis of Tetracycline Antibiotics on Kromasil® Eternity™ C18
Keywords: Antibiotics, Chromatography, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Metabolites

Peer-Reviewed Papers


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