An anionic fluorescent dye
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8-Aminopyrene-1,3,6-trisulfonic Acid (sodium salt)

Item No. 23098

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
8-amino-1,3,6-pyrenetrisulfonic acid, trisodium salt
CAS Number
196504-57-1
Synonyms
  • APTS
Molecular Formula
C16H8NO9S3 • 3Na
Formula Weight
523.4
Purity
≥95%
Emission
503 nm
Excitation
425 nm
Formulation (Request formulation change)
A crystalline solid
Solubility(Learn about Variance in Solubility)
DMF: 0.2 mg/mlDMSO: 2 mg/mlPBS (pH 7.2): 10 mg/ml
λmax
203, 435 nm
SMILES
NC1=CC(S([O-])(=O)=O)=C(C=C2)C3=C(C2=C(S([O-])(=O)=O)C=C4S([O-])(=O)=O)C4=CC=C31.[Na+].[Na+].[Na+]
InChi Code
InChI=1S/C16H11NO9S3.3Na/c17-11-5-12(27(18,19)20)8-3-4-10-14(29(24,25)26)6-13(28(21,22)23)9-2-1-7(11)15(8)16(9)10;;;/h1-6H,17H2,(H,18,19,20)(H,21,22,23)(H,24,25,26);;;/q;3*+1/p-3
InChi Key
XSTNYACEWLNWPY-UHFFFAOYSA-K
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    Cayman Chemical
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    Product Description

    8-Aminopyrene-1,3,6-trisulfonic acid (APTS) is an anionic fluorescent dye with excitation/emission spectra of 425/503 nm, respectively.1 It forms a ground state complex with viologen-type quenchers, inducing a red-shift in the absorbance spectrum from 425 to 464 nm. APTS is pH insensitive, with the emission maximum remaining constant over the pH range of 4-10. It can be used in solution or immobilized through attachment of an aldehyde functionalized monomer by reductive amination without significantly changing fluorescence intensity. APTS has been used as a reporter for glucose sensing and for the detection of other saccharides.1,2

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Sharrett, Z., Gamsey, S., Hirayama, L., et al. Exploring the use of APTS as a fluorescent reporter dye for continuous glucose sensing. Org. Biomol. Chem. 7(7), 1461-1470 (2009).

    2. Cordes, D.B., and Singaram, B. A unique, two-component sensing system for fluorescence detection of glucose and other carbohydrates. Pure Appl. Chem. 84(11), 2183-2202 (2012).