An azo dye
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Acid Red 26

Item No. 44531

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
4-[2-(2,4-dimethylphenyl)diazenyl]-3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt
CAS Number
3761-53-3
Synonyms
  • Acid Scarlet GR
  • AR-26
  • Ponceau MX
  • Ponceau Xylidine
  • Xylidine Ponceau 2R
Molecular Formula
C18H14N2O7S2 • 2Na
Formula Weight
480.4
Formulation (Request formulation change)
A solid
Solubility(Learn about Variance in Solubility)
PBS (pH 7.2): Slightly soluble: 0.1-1 mg/ml
SMILES
O=S([O-])(C(C=CC1=C2N=NC3=CC=C(C)C=C3C)=CC1=CC(S(=O)([O-])=O)=C2O)=O.[Na+].[Na+]
InChi Code
InChI=1S/C18H16N2O7S2.2Na/c1-10-3-6-15(11(2)7-10)19-20-17-14-5-4-13(28(22,23)24)8-12(14)9-16(18(17)21)29(25,26)27;;/h3-9,21H,1-2H3,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2
InChi Key
YJVBLROMQZEFPA-UHFFFAOYSA-L
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    25 g

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    Product Description

    Acid red 26 is an azo dye.1 It displays an absorbance maximum at 500 nm. Acid red 26 induces mortality in zebrafish larvae at 2,800 µg/ml and decreases heart rate and induces cardiac edema, yolk sac absorption delay, and swimming bladder deflation in zebrafish larvae in a concentration-dependent manner.2 It increases sister chromatid exchange (SCE) in mouse bone marrow cells when administered at doses of 62.5 and 125 mg/kg.3 Formulations containing acid red 26 have been used as textile dyes.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Ma, Q., Bai, H., Zhang, Q., et al. Determination of carcinogenic and allergenic dyestuffs in toys by LC coupled to UV/Vis spectrometry and tandem mass spectrometry. Chromatographia 72(1), 85-93 (2010).

    2. Shen, B., Liu, H.-C., Ou, W.-B., et al. Toxicity induced by basic violet 14, direct red 28 and acid red 26 in zebrafish larvae. J. Appl. Toxicol. 35(12), 1473-1480 (2015).

    3. Parodi, S., Zunino, A., Ottaggio, L., et al. Lack of correlation between the capability of inducing sister-chromatid exchanges in vivo and carcinogenic potency, for 16 aromatic amines and azo derivatives. Mutat. Res. 108(1-3), 225-238 (1983).