(2S,3R,4S,5S,6R)-2-(((2S,3R,4S,5S,6R)-4,5-Dihydroxy-2-(((3R,6R)-2-hydroxy-6-((3S,8S,9R,10R,11R,13R,14S,17R)-11-hydroxy-4,4,9,13,14-pentamethyl-3-(((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-methylheptan-3-yl)oxy)-6-((((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)methyl)tetrahydro-2H-pyran-3-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol, 98%

cas: 126105-12-2 — see every product listed under this CAS number, including other names

(2S,3R,4S,5S,6R)-2-(((2S,3R,4S,5S,6R)-4,5-Dihydroxy-2-(((3R,6R)-2-hydroxy-6-((3S,8S,9R,10R,11R,13R,14S,17R)-11-hydroxy-4,4,9,13,14-pentamethyl-3-(((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-methylheptan-3-yl)oxy)-6-((((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)methyl)tetrahydro-2H-pyran-3-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol, 98% (CAS 126105-12-2) is a chemical reagent available from Chemat. Available pack sizes: 1mg, 5mg, 10mg, 25mg, 50mg. Offered by: BLDpharm.

• 2D
• 3D

Siamenoside I is a cucurbitacin and a glycoside.

Source: ChEBI

Identity

Molecular formula	C54H92O24
Molecular weight	1125.3 g/mol
IUPAC name	(2R,3R,4S,5S,6R)-2-[[(2R,3S,4S,5R,6S)-3,4-dihydroxy-6-[(3R,6R)-2-hydroxy-6-[(3S,8S,9R,10R,11R,13R,14S,17R)-11-hydroxy-4,4,9,13,14-pentamethyl-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,3,7,8,10,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-17-yl]-2-methylheptan-3-yl]oxy-5-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]methoxy]-6-(hydroxymethyl)oxane-3,4,5-triol
InChIKey	XJIPREFALCDWRQ-UYQGGQRHSA-N
SMILES	C[C@H](CC[C@H](C(C)(C)O)O[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1)CO[C@H]2[C@@H]([C@H]([C@@H]([C@H](O2)CO)O)O)O)O)O)O[C@H]3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O)O)O)[C@H]4CC[C@@]5([C@@]4(C[C@H]([C@@]6([C@H]5CC=C7[C@H]6CC[C@@H](C7(C)C)O[C@H]8[C@@H]([C@H]([C@@H]([C@H](O8)CO)O)O)O)C)O)C)C

Computed by PubChem (NCBI)

Synonyms: Siamenoside I, SHIKONIN(SH), SiamenosideI, Siamenoside-I, Momordica grosvenori, Siamenoside I (Standard), orb1219393, orb1297208, orb3139595

Isomers (same molecular formula)

2-[[6-[[17-[5-[4,5-dihydroxy-6-(hydroxymethyl)-3-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-6-hydroxy-6-methylheptan-2-yl]-11-hydroxy-4,4,9,13,14-pentamethyl-2,3,7,8,10,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-yl]oxy]-3,4,5-trihydroxyoxan-2-yl]methoxy]-6-(hydroxymethyl)oxane-3,4,5-triol C₅₄H₉₂O₂₄

(2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-[[(2R,3S,4S,5R,6R)-3,4,5-trihydroxy-6-[[(3S,8S,9R,10R,11R,13R,14S,17R)-11-hydroxy-17-[(2R,5R)-6-hydroxy-6-methyl-5-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-[[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]oxan-2-yl]oxyheptan-2-yl]-4,4,9,13,14-pentamethyl-2,3,7,8,10,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-yl]oxy]oxan-2-yl]methoxy]oxane-3,4,5-triol C₅₄H₉₂O₂₄

2-[[6-[[17-[5-[4,5-dihydroxy-6-(hydroxymethyl)-3-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-6-hydroxy-6-methylheptan-2-yl]-11-hydroxy-4,4,9,13,14-pentamethyl-2,3,7,8,10,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-yl]oxy]-3,4,5-trihydroxyoxan-2-yl]methoxy]-6-(hydroxymethyl)oxane-3,4,5-triol C₅₄H₉₂O₂₄