An acid nitro dye
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Acid Orange 3

Item No. 44539

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
5-[(2,4-dinitrophenyl)amino]-2-(phenylamino)-benzenesulfonic acid, monosodium salt
CAS Number
6373-74-6
Synonyms
  • AO3
  • C.I. 10385
Molecular Formula
C18H13N4O7S • Na
Formula Weight
452.4
Formulation (Request formulation change)
A solid
Solubility(Learn about Variance in Solubility)
DMSO: Sparingly soluble: 1-10 mg/ml
λmax
204, 294, 344 nm
SMILES
O=S(C1=CC(NC(C([N+]([O-])=O)=C2)=CC=C2[N+]([O-])=O)=CC=C1NC3=CC=CC=C3)([O-])=O.[Na+]
InChi Code
InChI=1S/C18H14N4O7S.Na/c23-21(24)14-7-9-15(17(11-14)22(25)26)20-13-6-8-16(18(10-13)30(27,28)29)19-12-4-2-1-3-5-12;/h1-11,19-20H,(H,27,28,29);/q;+1
InChi Key
KKBFCPLWFWQNFB-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    25 mg

    $59

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    50 mg

    $106

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    100 mg

    $189

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    250 mg

    $384

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    Product Description

    Acid orange 3 is an acid nitro dye.1 It displays an absorbance maximum of 372 nm. Acid orange 3 (0.01-10 µg/ml) does not induce foci formation in an in vitro carcinogenicity assay using T1 mouse embryonic fibroblasts.2 It induces allergic contact dermatitis in guinea pigs.3 Formulations containing acid orange 3 have been used as semipermanent hair dyes and textile dyes.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Li, J.-T., Bai, B., and Song, Y.-L. Removal of acid orange 3 from aqueous solution by activated carbon adsorption. Asian J. Chem. 22(1), 439-447 (2010).

    2. Kowalski, L.A., Assi, K.P., Wee, R.K., et al. In vitro prediction of carcinogenicity using a bovine papillomavirus DNA-carrying C3H/10T1/2 cell line (T1). II: Results from the testing of 100 chemicals. Environ. Mol. Mutagen. 37(3), (2001).

    3. Dinardo, J., and Draelos, Z.D. An animal model assessment of common dye-induced allergic contact dermatitis. J. Cosmet. Sci. 58(3), 209-214 (2007).