Peta-Shin

Peta-Shin
IUPAC name (1R,2R,7S,8aR) -1,8a-dimethyl-7-(1-methylethenyl) -6-oxo-1,2,3,4,6,7,8,8a-octahydronaphthalen-2-yl (2Z) -2-methylbut-2-enoate
Another name Petasol butenoate; O-Angeloylsencathenone
Identification information
CAS registration number	26,577-85-5
PubChem	5281526
ChemSpider	4444859
SMILES O=C2/C=C1/CC[C@@H](OC(=O)\C(=C/C)C)[C@@H]([C@]1(C[C@H]2\C(=C)C)C)C
InChI InChI=1S/C20H28O3/c1-7-13(4)19(22)23-18-9-8-15-10-17(21)16(12(2)3)11-20(15,6)14(18)5/h7,10,14,16,18H,2,8-9,11H2,1,3-6H3/b13-7-/t14-,16-,18+,20+/m0/s1 Key: ISTBXSFGFOYLTM-NZEDGPFZSA-N InChI=1/C20H28O3/c1-7-13(4)19(22)23-18-9-8-15-10-17(21)16(12(2)3)11-20(15,6)14(18)5/h7,10,14,16,18H,2,8-9,11H2,1,3-6H3/b13-7-/t14-,16-,18+,20+/m0/s1 Key: ISTBXSFGFOYLTM-NZEDGPFZBZ
Characteristic
Chemical formula	C20H28O3
Molar mass	316.43 g mol-1
I can put a case, the data without the special mention for normal temperature (25 degrees Celsius), the ordinary pressure (100 kPa).

Peta-Shin (petasin) is a natural compound seen in the butterbur genus (Petasites). With the peta-sole ester of the angelic acid, I am classified in sesquiterpene chemically.

Source

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