An azo dye
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Acid Red 33

Item No. 44709

Product Insert (PDF)
Technical Information
Formal Name
5-amino-4-hydroxy-3-(2-phenyldiazenyl)-2,7-naphthalenedisulfonic acid, disodium salt
CAS Number
3567-66-6
Synonyms
  • AR33
  • D&C Red No. 33
Molecular Formula
C16H11N3O7S2 • 2Na
Formula Weight
467.4
Purity
≥95%
Formulation (Request formulation change)
A solid
Solubility(Learn about Variance in Solubility)
DMSO: Sparingly soluble: 1-10 mg/mlEthanol: Slightly soluble: 0.1-1 mg/mlPBS (pH 7.2): Sparingly soluble: 1-10 mg/ml
SMILES
O=S([O-])(C1=CC(N)=C2C(O)=C(C(S(=O)([O-])=O)=CC2=C1)N=NC3=CC=CC=C3)=O.[Na+].[Na+]
InChi Code
InChI=1S/C16H13N3O7S2.2Na/c17-12-8-11(27(21,22)23)6-9-7-13(28(24,25)26)15(16(20)14(9)12)19-18-10-4-2-1-3-5-10;;/h1-8,20H,17H2,(H,21,22,23)(H,24,25,26);;/q;2*+1/p-2
InChi Key
LQJVOKWHGUAUHK-UHFFFAOYSA-L
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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Certificates of Analysis & Batch Specific Data

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    10 mg

    $48

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    25 mg

    $114

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    50 mg

    $216

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    100 mg

    $384

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    Product Description

    Acid red 33 is an azo dye.1 It displays an absorbance maximum at 530 nm. Formulations containing acid red 33 have been used in dental care products and cosmetics.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Nabizadeh Chianeh, F., Basiri Parsa, J., and Rezaei Vahidian, H. Artificial neural network modeling for removal of azo dye from aqueous solutions by Ti anode coated with multiwall carbon nanotubes. Environ. Prog. Sustainable Energy 36(6), 1778-1784 (2017).