Resorufin sodium salt CAS: 34994-50-8
MF: C12H6NO3•Na
MW: 235.17
An anionic tricyclic phenoxazineone dye compound.

Resorufin sodium salt (CAS 34994-50-8)

  • bvseo_sdk, java_sdk, bvseo-3.2.0
  • CLOUD, getAggregateRating, 139ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;
Alternate Names: 7-Hydroxy-3H-phenoxazin-3-one Sodium Salt; Sodium Resorufin
Application: Resorufin sodium salt is an anionic tricyclic phenoxazineone dye compound
CAS Number: 34994-50-8
Molecular Weight: 235.17
Molecular Formula: C12H6NO3•Na
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data (including water content).
Submit a review for this product and receive 15 CruzCredits

Resorufin is an anionic tricyclic dye. Resorufin is used as a calibration standard for resorufin-derived enzyme substrates. It has pH dependent absorption and emission over the range of 5 to 9, exhibiting yellow fluorescence at pH 4.4 and weak orange fluorescence at pH 6.4. It is also the reduction product of resazurin in cells.


1. Alderton, W.K., et al. 2001. Biochem. J. 357: 593-615. PMID: 11463332
2. Ying, L., et al. 2007. Cancer Res. 67: 1407-1410. PMID: 17308075

Physical State :
Solubility :
Soluble in water (1 mg/mL), and DMSO.
Storage :
Store at 4° C
Melting Point :
>300° C (lit.)
Fluoresence :
λex 572 nm, λem 583 nm; λex 550 nm, λem 585 nm in 50 mM phosphate buffer, pH 7.7
pK Values :
pKa: 7.9
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
WGK Germany :
PubChem CID :
MDL Number :
EC Number :
Beilstein Registry :

Download SDS (MSDS)

Certificate of Analysis

Adobe Acrobat Reader is required to reliably view,
print and comment on PDF documents

Resorufin sodium salt (CAS 34994-50-8) Product Citations

See how others have used Resorufin sodium salt (CAS 34994-50-8). Click on the entry to view the PubMed entry .

Citations 1 to 4 of 4 total

PMID: # 18330874  Park, C. et al. 2008. Angew. Chem. Int. Ed. Engl. 47: 2959-2963.

PMID: # 17629289  Kim, SY. et al. 2007. Org. Lett. 9: 3109-3112.

PMID: # 16584260  Park, C. et al. 2006. Langmuir. 22: 3812-3817.

PMID: # 11253919  Maeda, H. et al. 2001. Chem. Pharm. Bull. 49: 294-298.

Citations 1 to 4 of 4 total

Can this resorufin be used to create a reliable 50ug/mL standard using media as a diluent, that will read as such in a plate reader and be stable in a freezer at -20C?

Asked by: Santo Madieri
Thank you for your question. Unfortunately, we were unable to find any application reference to answer your question. We also have not performed stability testing on this product and we cannot comment on whether it would be stable in the freezer at -20 degrees Celsius.
Answered by: Technical Support
Date published: 2017-10-06
  • y_2020, m_5, d_26, h_14CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.8
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_1
  • loc_en_US, sid_206019, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-3.2.0
  • CLOUD, getContent, 122ms
  • bvseo_sdk, java_sdk, bvseo-3.2.0
  • CLOUD, getReviews, 16ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;

Santa Cruz Biotechnology, Inc. is a world leader in the development of products for the biomedical research market. Call us Toll Free at 1-800-457-3801.
Copyright © 2007-2020 Santa Cruz Biotechnology, Inc. All Rights Reserved. "Santa Cruz Biotechnology", and the Santa Cruz Biotechnology, Inc. logo, "Santa Cruz Animal Health", "San Juan Ranch", "Supplement of Champions", the San Juan Ranch logo, "Ultracruz", "Chemcruz", "Immunocruz", "Exactacruz", and "EZ Touch" are registered trademarks of Santa Cruz Biotechnology, Inc.
All trademarks are the property of their respective owners.