Acid Orange 6

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 571575

CAS#: 547-57-9

Description: Acid Orange 6 is an orange dye.

Chemical Structure

Acid Orange 6
CAS# 547-57-9

Theoretical Analysis

MedKoo Cat#: 571575
Name: Acid Orange 6
CAS#: 547-57-9
Chemical Formula: C12H9N2NaO5S
Exact Mass: 316.013
Molecular Weight: 316.2628
Elemental Analysis: C, 45.57; H, 2.87; N, 8.86; Na, 7.27; O, 25.29; S, 10.14

Price and Availability

Size Price Availability Quantity
2.0g USD 210.0 2 Weeks
10.0g USD 345.0 2 Weeks
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Synonym: NSC 10441; NSC10441; NSC-1044; Chrysoine S Extra Pure

IUPAC/Chemical Name: Benzenesulfonic acid, 4-((2,4-dihydroxyphenyl)azo)-, monosodium salt


InChi Code: InChI=1S/C12H10N2O5S.Na/c15-9-3-6-11(12(16)7-9)14-13-8-1-4-10(5-2-8)20(17,18)19;/h1-7,15-16H,(H,17,18,19);/q;+1/p-1/b14-13+;

SMILES Code: O=S(C1=CC=C(/N=N/C2=CC=C(O)C=C2O)C=C1)([O-])=O.[Na+]

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 316.2628 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Hsing HJ, Chiang PC, Chang EE, Chen MY. The decolorization and mineralization of acid orange 6 azo dye in aqueous solution by advanced oxidation processes: a comparative study. J Hazard Mater. 2007 Mar 6;141(1):8-16. Epub 2006 Nov 7. PubMed PMID: 17222965.

2: Singh P, Sanghi R, Pandey A, Iyengar L. Decolorization and partial degradation of monoazo dyes in sequential fixed-film anaerobic batch reactor (SFABR). Bioresour Technol. 2007 Jul;98(10):2053-6. Epub 2006 Oct 10. PubMed PMID: 17035003.

3: Kalyuzhnyi S, Yemashova N, Fedorovich V. Kinetics of anaerobic biodecolourisation of azo dyes. Water Sci Technol. 2006;54(2):73-9. PubMed PMID: 16939086.

4: Yemashova N, Kalyuzhnyi S. Microbial conversion of selected azo dyes and their breakdown products. Water Sci Technol. 2006;53(11):163-71. PubMed PMID: 16862786.

5: Yemashova N, Telegina A, Kotova I, Netrusov A, Kalyuzhnyi S. Decolorization and partial degradation of selected azo dyes by methanogenic sludge. Appl Biochem Biotechnol. 2004 Oct;119(1):31-40. PubMed PMID: 15496726.