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Levopimaarihappo

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Levopimaarihappo
Tunnisteet
IUPAC-nimi (1R,4aR,4bS,10aR)-1,4a-dimetyyli-7-propan-2-yyli-2,3,4,4b,5,9,10,10a-oktahydrofenantreeni-1-karboksyylihappo
CAS-numero 79-54-9
PubChem CID 221062
SMILES CC(C)C1=CCC2C(=C1)CCC3C2(CCCC3(C)C(=O)O)C
Ominaisuudet
Molekyylikaava C20H30O2
Moolimassa 302,45 g/mol
Sulamispiste 150–152 °C
Kiehumispiste 429,4 °C (760 mmHg)
Tiheys 1,06 g/cm3
Liukoisuus veteen 2,54 mg/l

Levopimaarihappo on rakenteeltaan trisyklinen diterpenoidi, jota esiintyy esimerkiksi pihkassa ja mäntyöljyssä. Yhdiste kuuluu havupuissa esiintyviin hartsihappoihin, tarkemmin abietaaneihin.

Levopimaarihapon kemiallinen kaava on C20H30O2 ja moolimassa 302,45 g/mol, tiheys 1,06 g/cm3, sulamispiste 150–152 °C, kiehumispiste 429,4 °C (760 mmHg), leimahduspiste 204,6 °C, taitekerroin 1,541 ja CAS-numero 79-54-9. Se liukenee heikosti veteen eli 2,54 mg/l.

Levopimaarihappo muuttuu helposti lämmön tai happojen vaikutuksesta lähes täydellisesti abietiinihapoksi.

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Levopimaarihappo
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