Calostomal

Calostomal

Names
Systematic IUPAC name (2E,4E,6E,8E,10E,12E,14E)-16-Oxo-2,4,6,8,10,12,14-hexadecaheptaenoic acid
Identifiers
CAS Number	935858-29-0
3D model (Jmol)	Interactive image
ChemSpider	28283879
InChI InChI=1S/C16H16O3/c17-15-13-11-9-7-5-3-1-2-4-6-8-10-12-14-16(18)19/h1-15H,(H,18,19)/b2-1+,5-3+,6-4+,9-7+,10-8+,13-11+,14-12+ Key: GIIWFUDWDOUFTE-JCSPMBIZSA-N InChI=1/C16H16O3/c17-15-13-11-9-7-5-3-1-2-4-6-8-10-12-14-16(18)19/h1-15H,(H,18,19)/b2-1+,5-3+,6-4+,9-7+,10-8+,13-11+,14-12+ Key: GIIWFUDWDOUFTE-JCSPMBIZBZ
SMILES C(=C/C=C/C=C/C=C/C(=O)O)\C=C\C=C\C=C\C=O
Properties
Chemical formula	C16H16O3
Molar mass	256.30 g·mol^−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Calostomal is an organic compound that has a carboxylic acid and an aldehyde group. It is an orange solid that is extracted from the mushroom Calostoma cinnabarinum, hence its name. The structure of this compound was confirmed by NMR and mass spectrometry of the methyl ester derivative.^[1] This compound is a polyene; its conjugated system accounts for its intense color, similar to lycopene found in tomatoes.

Calostoma cinnabarinum

References

1. Gruber G, Steglich W. (2007). "Calostomal, a polyene pigment from the gasteromycete Calostoma cinnabarinum (Boletales)" (pdf). Zeitschrift für Naturforschung B. 62 (1): 129–131.