A hydroxyanthraquinone dye
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Cochineal

Item No. 35334

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
7-β-D-glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-2-anthracenecarboxylic acid
CAS Number
1260-17-9
Synonyms
  • Carminic Acid
  • Carmine 5297
  • E 120
  • NSC 326224
Molecular Formula
C22H20O13
Formula Weight
492.4
Purity
≥80%
Formulation (Request formulation change)
A solid
Solubility(Learn about Variance in Solubility)
DMF: insolDMSO: 2 mg/mlEthanol: insolPBS (pH 7.2): 1 mg/ml
λmax
223, 278 nm
SMILES
O[C@@H]1[C@@H](CO)O[C@@H](C(C(O)=C2C(C(C3=CC(O)=C(C(C)=C3C2=O)C(O)=O)=O)=C4O)=C4O)[C@H](O)[C@H]1O
InChi Code
InChI=1S/C22H20O13/c1-4-8-5(2-6(24)9(4)22(33)34)13(25)10-11(15(8)27)16(28)12(18(30)17(10)29)21-20(32)19(31)14(26)7(3-23)35-21/h2,7,14,19-21,23-24,26,28-32H,3H2,1H3,(H,33,34)/t7-,14-,19+,20-,21+/m1/s1
InChi Key
DGQLVPJVXFOQEV-JNVSTXMASA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    1 g

    $119

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    5 g

    $354

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    10 g

    $647

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    Product Description

    Cochineal is a hydroxyanthraquinone dye originally isolated from female cochineal insects (D. coccus).1 Formulations containing cochineal have been used as color additives in food and pharmaceutical preparations.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Zuchelli, M., Villarruel, F.D., David-Gara, P., et al. Photophysics and photochemistry of carminic acid and related natural pigments. Phys. Chem. Chem. Phys. 22(17), 9534-9542 (2020).