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Dehydro-L-(+)-ascorbic acid dimer

≥80% (enzymatic)

Bis-DHA, DHA, Bis(dehydro-L-ascorbic acid)
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
MDL number:
PubChem Substance ID:

biological source



≥80% (enzymatic)




faint beige to beige
faint brown to light brown
white to yellow

shipped in

dry ice

storage temp.




InChI key


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General description

Dehydro-L-(+)-ascorbic acid dimer is a water soluble molecule, which is produced by vitamin C in the lumen of gastrointestinal tract.


Dehydro-L-(+)-ascorbic acid dimer has been used to study its transformation and stability under the influence of pH, concentration and temperature.

Biochem/physiol Actions

Dehydro-L-(+)-ascorbic acid dimer is used to regenerate ascorbic acid(AA). AA oxidation to dehydroascorbic acid (DHA) takes place in extracellular fluid and cells. AA acts as an antioxidant and enzyme cofactor. It is used in a wide variety of applications, including cell culture. It also acts as a reducing agent, that helps reduce oxidative stress. L-Ascorbate can be regenerated from dehydroascorbic acid (DHA) by biological systems.

Other Notes

Dimer in crystalline form; hydrated monomer in aqueous solution
Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. D8132.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit

Storage Class Code

13 - Non Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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More documents

Quotes and Ordering

Vitamin C (2017)
Sarah E Bohndiek et al.
Journal of the American Chemical Society, 133(30), 11795-11801 (2011-06-23)
Dynamic nuclear polarization (DNP) of (13)C-labeled metabolic substrates in vitro and their subsequent intravenous administration allow both the location of the hyperpolarized substrate and the dynamics of its subsequent conversion into other metabolic products to be detected in vivo. We
Gisele Monteiro et al.
Proceedings of the National Academy of Sciences of the United States of America, 104(12), 4886-4891 (2007-03-16)
Peroxiredoxins (Prx) are widely distributed peroxidases that can be divided into 1-Cys and 2-Cys Prx groups based on the number of conserved cysteine residues that participate in their catalytical cycle. Prx have been described to be strictly dependent on thiols
A Wesley Burks et al.
Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology, 26(4), 316-322 (2015-04-08)
Children with cow's milk allergy (CMA) are at risk for inadequate nutritional intake and growth. Dietary management of CMA, therefore, requires diets that are not only hypoallergenic but also support adequate growth in this population. This study assessed growth of
Stability and transformation of products formed from dimeric dehydroascorbic acid at low pH
Wechtersbach L, et al.
Food Chemistry, 129(3), 965-973 (2011)

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