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| Year of first isolation: | 2021 |  | Formula: | C27H40O7 |  | Molecular weight: | 476 |  | Occurence in plants: |  | Paris polyphylla var. yunnanensis [Melanthiaceae] »   ![Wikipedia: Paris polyphylla var. yunnanensis [Melanthiaceae]](/images/wikipedia.png) 
 |  | Occurence in animals: |  |  |  |   |  |
 | | Canonical SMILES |  |  | Isomeric SMILES [ PubChem: search | XML ]
 [ ChemSpider: search ]
 | CC(C)(C(\C([H])=C([H])\[C@@](C)([C@H]3CC[C@]4(C2=CC([C@@H]1C[C@H]([C@H](C[C@]1(C)C2CC[C@]34C)O[H])O[H])=O)O[H])O[H])=O)O[H] »  
 |  | IUPAC Name | (2S,3R,5R,10R,13R,14S,17S)-17-((S,E)-2,6-dihydroxy-6-methyl-5-oxohept-3-en-2-yl)-2,3,14-trihydroxy-10,13-dimethyl-1,2,3,4,5,9,10,11,12,13,14,15,16,17-tetradecahydro-6H-cyclopenta[a]phenanthren-6-one |  | CAS-RN |  |  | PubChem CID |  |  | InChiKey [ ChemIDPlus: search ]
 | KXOXJMJIPRGULB-NQYXCMQDSA-N |  | InChI | InChI=1S/C27H40O7/c1-23(2,32)22(31)8-10-26(5,33)21-7-11-27(34)16-12-18(28)17-13-19(29)20(30)14-24(17,3)15(16)6-9-25(21,27)4/h8,10,12,15,17,19-21,29-30,32-34H,6-7,9,11,13-14H2,1-5H3/b10-8+/t15?,17-,19+,20-,21-,24+,25+,26-,27+/m0/s1 | 
 
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 | | EI-MS m/z (relative intensity %) |  |  | CI-MS (NH3) m/z |  |  | HRESIMS (negative ion mode) m/z | 499.2669 [M+Na]+, calculated 499.2672 | 
 
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 | | CD3OD |  | 01 | 37.4 |  | 02 | 68.7 |  | 03 | 68.5 |  | 04 | 32.9 |  | 05 | 51.8 |  | 06 | 206.5 |  | 07 | 122.1 |  | 08 | 167.8 |  | 09 | 35.1 |  | 10 | 39.3 |  | 11 | 21.5 |  | 12 | 32.2 |  | 13 | 48.4 |  | 14 | 85.1 |  | 15 | 31.7 |  | 16 | 22.8 |  | 17 | 55.5 |  | 18 | 18.8 |  | 19 | 24.4 |  | 20 | 77.0 |  | 21 | 28.8 |  | 22 | 156.5 |  | 23 | 120.6 |  | 24 | 205.1 |  | 25 | 76.3 |  | 26 | 26.5 |  | 27 | 26.5 | 
 | | CD3OD |  | 01-Ha | 1.78 (dd, 12.8, 3.7) |  | 01-Hb | 1.41 (t, 12.8) |  | 02-Ha | 3.82 (dt, 12.8, 3.7) |  | 03-He | 3.94 (m) |  | 04-Ha | 1.72 (m) |  | 04-Hb | 1.69 (m) |  | 05-H | 2.36 (dd, 13.0, 4.2) |  | 07-H | 5.78 (d, 2.6) |  | 09-H | 3.14 (m) |  | 11-Ha | 1.78 (m) |  | 11-Hb | 1.64 (m) |  | 12-Ha | 2.13 (dt, 13.1, 4.8) |  | 12-Hb | 1.90 (m) |  | 15-Ha | 1.94 (m) |  | 15-Hb | 1.61 (m) |  | 16-Ha | 1.79 (m) |  | 16-Hb | ? |  | 17-H | 2.48 (9.5) |  | 18-Me | 0.76 (s) |  | 19-Me | 0.94 (s) |  | 21-Me | 1.37 (s) |  | 22-H | 7.14 (d, 15.5) |  | 23-H | 6.88 (d, 15.5) |  | 26-Me | 1.33 (s) |  | 27-Me | 1.33 (s) | 
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 | | M.P. | — °C ; |  | [α]D20 | +24.7° (c 0.08 ; MeOH) |  | IR (KBr) ν max (cm-1) | 3414, 2967, 1654, 1446, 1384, 1150, 1069 |  | UV (MeOH) λ max (log ε) | 240 nm (2.63) ; | 
 
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 |  | Permanent link to this datasheet: 24-OXO-22,23-DEHYDRO-20-HYDROXYECDYSONE |  |