Exact Mass: 343.2511

Exact Mass Matches: 343.2511

Found 64 metabolites which its exact mass value is equals to given mass value 343.2511, within given mass tolerance error 0.0002 dalton. Try search metabolite list with more accurate mass tolerance error 4.0E-5 dalton.

denudatine

(1S,5R,8R,10S,11R,13R,14S,15S,16R)-7-Ethyl-5-methyl-12-methylidene-7-azahexacyclo[7.6.2.210,13.01,8.05,16.010,15]nonadecane-11,14-diol

C22H33NO2 (343.2511)


Denudatine is a diterpenoid. It derives from a hydride of an atisane. CID 441729 is a natural product found in Aconitum kusnezoffii and Aconitum carmichaelii with data available.

   
   

Atisine

Anthorine

C22H33NO2 (343.2511)


A organic heterohexacyclic compound and diterpene alkaloid isolated from Aconitum anthora. In solution, it is a 2:1 mixture of readily interconvertible epimers at position 20 (the carbon attached to both the nitrogen and an oxygen atom).

   

Cuauchichicine

Veatchine,15-deoxy-16,17-dihydro-15-oxo-, (16-beta,20S)-

C22H33NO2 (343.2511)


   

Garryine

ISOGARRYFOLINE

C22H33NO2 (343.2511)


   

Paravallarine

Paravallarine

C22H33NO2 (343.2511)


A natural product found in Kibatalia laurifolia.

   
   

Hydroxyethyl retinamide

N-(2-hydroxyethyl)-3,7-dimethyl-9-(2,6,6-trimethylcyclohex-1-en-1-yl)nona-2,4,6,8-tetraenamide

C22H33NO2 (343.2511)


   

Bullatine

(5R,11R,14S,15R,16R)-7-ethyl-5-methyl-12-methylidene-7-azahexacyclo[7.6.2.210,13.01,8.05,16.010,15]nonadecane-11,14-diol

C22H33NO2 (343.2511)


Bullatine A, a diterpenoid alkaloid of the genus Aconitum, possesses anti-rheumatic, anti-inflammatory and anti-nociceptive effects. Bullatine A is a potent P2X7 antagonist, inhibits ATP-induced cell death/apoptosis and P2X receptor-mediated inflammatory responses[1]. Bullatine A attenuates pain hypersensitivity, regardless of the pain models employed[2]. Bullatine A, a diterpenoid alkaloid of the genus Aconitum, possesses anti-rheumatic, anti-inflammatory and anti-nociceptive effects. Bullatine A is a potent P2X7 antagonist, inhibits ATP-induced cell death/apoptosis and P2X receptor-mediated inflammatory responses[1]. Bullatine A attenuates pain hypersensitivity, regardless of the pain models employed[2].

   

Chellespontine

Chellespontine

C22H33NO2 (343.2511)


   
   

Isocuauchichicine

Isocuauchichicine

C22H33NO2 (343.2511)


   

4-methyl-6-(2-benzoyloxypentyl)-quinolizidine

4-methyl-6-(2-benzoyloxypentyl)-quinolizidine

C22H33NO2 (343.2511)


   

daphnezomine L

daphnezomine L

C22H33NO2 (343.2511)


   

caldaphnidine C

caldaphnidine C

C22H33NO2 (343.2511)


   

N-(4-Hydroxyphenethyl)-2,4-tetradecadienamid

N-(4-Hydroxyphenethyl)-2,4-tetradecadienamid

C22H33NO2 (343.2511)


   

oxo-3 hydroxy-18 methylamino-20(S) pregnadiene-1,4

oxo-3 hydroxy-18 methylamino-20(S) pregnadiene-1,4

C22H33NO2 (343.2511)


   

(3aR)-4t-[trans-2-((2S)-1,6t-dimethyl-piperidin-2r-yl)-vinyl]-3c-methyl-(3ar,4at,8ac)-3a,4,4a,5,6,7,8,8a-octahydro-3H-naphtho[2,3-c]furan-1-one|Himgravin|Himgravine

(3aR)-4t-[trans-2-((2S)-1,6t-dimethyl-piperidin-2r-yl)-vinyl]-3c-methyl-(3ar,4at,8ac)-3a,4,4a,5,6,7,8,8a-octahydro-3H-naphtho[2,3-c]furan-1-one|Himgravin|Himgravine

C22H33NO2 (343.2511)


   

(E,E)-N-(4-Hydroxyphenethyl)-2,4-tetradecadienamide

(E,E)-N-(4-Hydroxyphenethyl)-2,4-tetradecadienamide

C22H33NO2 (343.2511)


   

Bullatine A

(5R,11R,14S,15R,16R)-7-ethyl-5-methyl-12-methylidene-7-azahexacyclo[7.6.2.210,13.01,8.05,16.010,15]nonadecane-11,14-diol

C22H33NO2 (343.2511)


Bullatine A, a diterpenoid alkaloid of the genus Aconitum, possesses anti-rheumatic, anti-inflammatory and anti-nociceptive effects. Bullatine A is a potent P2X7 antagonist, inhibits ATP-induced cell death/apoptosis and P2X receptor-mediated inflammatory responses[1]. Bullatine A attenuates pain hypersensitivity, regardless of the pain models employed[2]. Bullatine A, a diterpenoid alkaloid of the genus Aconitum, possesses anti-rheumatic, anti-inflammatory and anti-nociceptive effects. Bullatine A is a potent P2X7 antagonist, inhibits ATP-induced cell death/apoptosis and P2X receptor-mediated inflammatory responses[1]. Bullatine A attenuates pain hypersensitivity, regardless of the pain models employed[2].

   

NEOCUPROINE HYDROCHLORIDE

NEOCUPROINE HYDROCHLORIDE

C22H33NO2 (343.2511)


   

N-(2-Hydroxyethyl)retinamide

N-(2-Hydroxyethyl)retinamide

C22H33NO2 (343.2511)


D020011 - Protective Agents > D000975 - Antioxidants > D002338 - Carotenoids

   

N-Methylgitingensine

N-Methylgitingensine

C22H33NO2 (343.2511)


A natural product found in Kibatalia laurifolia.

   

N-Benzyl-3-menthoxycarbonylpyrrolidine

N-Benzyl-3-menthoxycarbonylpyrrolidine

C22H33NO2 (343.2511)


   
   

Veatchine,15-deoxy-16,17-dihydro-15-oxo-, (16-beta,20S)-

Veatchine,15-deoxy-16,17-dihydro-15-oxo-, (16-beta,20S)-

C22H33NO2 (343.2511)


   
   

7-ethyl-5-methyl-12-methylidene-7-azahexacyclo[7.6.2.2¹⁰,¹³.0¹,⁸.0⁵,¹⁶.0¹⁰,¹⁵]nonadecane-11,14-diol

7-ethyl-5-methyl-12-methylidene-7-azahexacyclo[7.6.2.2¹⁰,¹³.0¹,⁸.0⁵,¹⁶.0¹⁰,¹⁵]nonadecane-11,14-diol

C22H33NO2 (343.2511)


   

2-[(1s,2s,4r,6r,7r,10r,11s)-6-hydroxy-11-methyl-5-methylidene-13-azapentacyclo[9.3.3.2⁴,⁷.0¹,¹⁰.0²,⁷]nonadecan-13-yl]acetaldehyde

2-[(1s,2s,4r,6r,7r,10r,11s)-6-hydroxy-11-methyl-5-methylidene-13-azapentacyclo[9.3.3.2⁴,⁷.0¹,¹⁰.0²,⁷]nonadecan-13-yl]acetaldehyde

C22H33NO2 (343.2511)


   

(1s,5r,9s,10s,11s,13r,14r,15s,16s)-7-ethyl-5-methyl-12-methylidene-7-azahexacyclo[7.6.2.2¹⁰,¹³.0¹,⁸.0⁵,¹⁶.0¹⁰,¹⁵]nonadecane-11,14-diol

(1s,5r,9s,10s,11s,13r,14r,15s,16s)-7-ethyl-5-methyl-12-methylidene-7-azahexacyclo[7.6.2.2¹⁰,¹³.0¹,⁸.0⁵,¹⁶.0¹⁰,¹⁵]nonadecane-11,14-diol

C22H33NO2 (343.2511)


   

(1s,2r,4s,6s,7s,10r,11r,17s)-11-methyl-5-methylidene-16-oxa-13-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹³,¹⁷]docosan-6-ol

(1s,2r,4s,6s,7s,10r,11r,17s)-11-methyl-5-methylidene-16-oxa-13-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹³,¹⁷]docosan-6-ol

C22H33NO2 (343.2511)


   

(1s,2r,4r,6r,7r,10r,11s,17r)-11-methyl-5-methylidene-16-oxa-13-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹³,¹⁷]docosan-6-ol

(1s,2r,4r,6r,7r,10r,11s,17r)-11-methyl-5-methylidene-16-oxa-13-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹³,¹⁷]docosan-6-ol

C22H33NO2 (343.2511)


   

(1s,2r,4r,6s,7r,10s,11s,17s)-11-methyl-5-methylidene-16-oxa-13-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹³,¹⁷]docosan-6-ol

(1s,2r,4r,6s,7r,10s,11s,17s)-11-methyl-5-methylidene-16-oxa-13-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹³,¹⁷]docosan-6-ol

C22H33NO2 (343.2511)


   

atisine

NA

C22H33NO2 (343.2511)


{"Ingredient_id": "HBIN017279","Ingredient_name": "atisine","Alias": "NA","Ingredient_formula": "C22H33NO2","Ingredient_Smile": "CC12CCCC3(C1CCC45C3CC(CC4)C(=C)C5O)C6N(C2)CCO6","Ingredient_weight": "343.5 g/mol","OB_score": "NA","CAS_id": "NA","SymMap_id": "SMIT01280","TCMID_id": "1964","TCMSP_id": "NA","TCM_ID_id": "6504;19590;19591;21569","PubChem_id": "135897293","DrugBank_id": "NA"}

   

2-[(1s,2s,4s,6r,7s,10r,11r)-6-hydroxy-11-methyl-5-methylidene-13-azapentacyclo[9.3.3.2⁴,⁷.0¹,¹⁰.0²,⁷]nonadecan-13-yl]acetaldehyde

2-[(1s,2s,4s,6r,7s,10r,11r)-6-hydroxy-11-methyl-5-methylidene-13-azapentacyclo[9.3.3.2⁴,⁷.0¹,¹⁰.0²,⁷]nonadecan-13-yl]acetaldehyde

C22H33NO2 (343.2511)


   

2-[(1s,2s,4s,6r,7s,10r)-6-hydroxy-11-methyl-5-methylidene-13-azapentacyclo[9.3.3.2⁴,⁷.0¹,¹⁰.0²,⁷]nonadecan-13-yl]acetaldehyde

2-[(1s,2s,4s,6r,7s,10r)-6-hydroxy-11-methyl-5-methylidene-13-azapentacyclo[9.3.3.2⁴,⁷.0¹,¹⁰.0²,⁷]nonadecan-13-yl]acetaldehyde

C22H33NO2 (343.2511)


   

(1r,2s,6r,7s,10s,11r,12s)-11-methyl-5-methylidene-13-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

(1r,2s,6r,7s,10s,11r,12s)-11-methyl-5-methylidene-13-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

C22H33NO2 (343.2511)


   

(1r,2s,4r,6r,7r,10s,11s,12s)-11-methyl-5-methylidene-13-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

(1r,2s,4r,6r,7r,10s,11s,12s)-11-methyl-5-methylidene-13-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

C22H33NO2 (343.2511)


   

11-ethyl-13-methyl-4-methylidene-11-azahexacyclo[7.7.2.1²,⁵.0¹,¹⁰.0³,⁸.0¹³,¹⁷]nonadecane-8,16-diol

11-ethyl-13-methyl-4-methylidene-11-azahexacyclo[7.7.2.1²,⁵.0¹,¹⁰.0³,⁸.0¹³,¹⁷]nonadecane-8,16-diol

C22H33NO2 (343.2511)


   

(1s,2r,4r,6r,7r,10r,11s,17s)-11-methyl-5-methylidene-16-oxa-13-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹³,¹⁷]docosan-6-ol

(1s,2r,4r,6r,7r,10r,11s,17s)-11-methyl-5-methylidene-16-oxa-13-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹³,¹⁷]docosan-6-ol

C22H33NO2 (343.2511)


   

(1r,2r,4r,6r,7r,10r,11r,12s)-11-methyl-5-methylidene-13-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

(1r,2r,4r,6r,7r,10r,11r,12s)-11-methyl-5-methylidene-13-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

C22H33NO2 (343.2511)


   

(2e,4e)-n-[2-(4-hydroxyphenyl)ethyl]tetradeca-2,4-dienimidic acid

(2e,4e)-n-[2-(4-hydroxyphenyl)ethyl]tetradeca-2,4-dienimidic acid

C22H33NO2 (343.2511)


   

(2r)-1-[(4s,6r,9ar)-6-methyl-octahydro-1h-quinolizin-4-yl]pentan-2-yl benzoate

(2r)-1-[(4s,6r,9ar)-6-methyl-octahydro-1h-quinolizin-4-yl]pentan-2-yl benzoate

C22H33NO2 (343.2511)


   

(1r,2s,5r,7s,8r,11s,12s,13s)-12-methyl-6-methylidene-14-oxa-17-azahexacyclo[10.6.3.1⁵,⁸.0¹,¹¹.0²,⁸.0¹³,¹⁷]docosan-7-ol

(1r,2s,5r,7s,8r,11s,12s,13s)-12-methyl-6-methylidene-14-oxa-17-azahexacyclo[10.6.3.1⁵,⁸.0¹,¹¹.0²,⁸.0¹³,¹⁷]docosan-7-ol

C22H33NO2 (343.2511)


   

3-[(2s,3s,8s,11s,12s,15r,16s)-12,16-dimethyl-1-azapentacyclo[9.6.1.0²,¹⁵.0³,¹².0⁴,⁸]octadec-4-en-3-yl]propanoic acid

3-[(2s,3s,8s,11s,12s,15r,16s)-12,16-dimethyl-1-azapentacyclo[9.6.1.0²,¹⁵.0³,¹².0⁴,⁸]octadec-4-en-3-yl]propanoic acid

C22H33NO2 (343.2511)


   

2-{6-hydroxy-11-methyl-5-methylidene-13-azapentacyclo[9.3.3.2⁴,⁷.0¹,¹⁰.0²,⁷]nonadecan-13-yl}acetaldehyde

2-{6-hydroxy-11-methyl-5-methylidene-13-azapentacyclo[9.3.3.2⁴,⁷.0¹,¹⁰.0²,⁷]nonadecan-13-yl}acetaldehyde

C22H33NO2 (343.2511)


   

(1s,2r,5r,7r,8r,11r,12s,18r)-12-methyl-6-methylidene-17-oxa-14-azahexacyclo[10.6.3.1⁵,⁸.0¹,¹¹.0²,⁸.0¹⁴,¹⁸]docosan-7-ol

(1s,2r,5r,7r,8r,11r,12s,18r)-12-methyl-6-methylidene-17-oxa-14-azahexacyclo[10.6.3.1⁵,⁸.0¹,¹¹.0²,⁸.0¹⁴,¹⁸]docosan-7-ol

C22H33NO2 (343.2511)


   

n-[2-(4-hydroxyphenyl)ethyl]tetradeca-2,4-dienimidic acid

n-[2-(4-hydroxyphenyl)ethyl]tetradeca-2,4-dienimidic acid

C22H33NO2 (343.2511)


   

(1s,2r,5r,7s,8r,11r,12s,18r)-12-methyl-6-methylidene-17-oxa-14-azahexacyclo[10.6.3.1⁵,⁸.0¹,¹¹.0²,⁸.0¹⁴,¹⁸]docosan-7-ol

(1s,2r,5r,7s,8r,11r,12s,18r)-12-methyl-6-methylidene-17-oxa-14-azahexacyclo[10.6.3.1⁵,⁸.0¹,¹¹.0²,⁸.0¹⁴,¹⁸]docosan-7-ol

C22H33NO2 (343.2511)


   

11-methyl-5-methylidene-13-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

11-methyl-5-methylidene-13-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

C22H33NO2 (343.2511)


   

(1s,2r,5r,7r,8r,11r,12r,18s)-12-methyl-6-methylidene-17-oxa-14-azahexacyclo[10.6.3.1⁵,⁸.0¹,¹¹.0²,⁸.0¹⁴,¹⁸]docosan-7-ol

(1s,2r,5r,7r,8r,11r,12r,18s)-12-methyl-6-methylidene-17-oxa-14-azahexacyclo[10.6.3.1⁵,⁸.0¹,¹¹.0²,⁸.0¹⁴,¹⁸]docosan-7-ol

C22H33NO2 (343.2511)


   

(1r,2s,4s,6r,7s,10s)-11-methyl-5-methylidene-13-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

(1r,2s,4s,6r,7s,10s)-11-methyl-5-methylidene-13-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

C22H33NO2 (343.2511)


   

3-{12,16-dimethyl-1-azapentacyclo[9.6.1.0²,¹⁵.0³,¹².0⁴,⁸]octadec-4-en-3-yl}propanoic acid

3-{12,16-dimethyl-1-azapentacyclo[9.6.1.0²,¹⁵.0³,¹².0⁴,⁸]octadec-4-en-3-yl}propanoic acid

C22H33NO2 (343.2511)


   

12-methyl-6-methylidene-14-oxa-17-azahexacyclo[10.6.3.1⁵,⁸.0¹,¹¹.0²,⁸.0¹³,¹⁷]docosan-7-ol

12-methyl-6-methylidene-14-oxa-17-azahexacyclo[10.6.3.1⁵,⁸.0¹,¹¹.0²,⁸.0¹³,¹⁷]docosan-7-ol

C22H33NO2 (343.2511)


   

3-[(1s,2s,7r,10s,13s,14r)-14-isopropyl-1-methyl-12-azatetracyclo[8.6.0.0²,¹³.0³,⁷]hexadeca-3,11-dien-2-yl]propanoic acid

3-[(1s,2s,7r,10s,13s,14r)-14-isopropyl-1-methyl-12-azatetracyclo[8.6.0.0²,¹³.0³,⁷]hexadeca-3,11-dien-2-yl]propanoic acid

C22H33NO2 (343.2511)


   

(1s,2r,4r,6s,7r,10s,11s,17r)-11-methyl-5-methylidene-16-oxa-13-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹³,¹⁷]docosan-6-ol

(1s,2r,4r,6s,7r,10s,11s,17r)-11-methyl-5-methylidene-16-oxa-13-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹³,¹⁷]docosan-6-ol

C22H33NO2 (343.2511)


   

1-(6-methyl-octahydro-1h-quinolizin-4-yl)pentan-2-yl benzoate

1-(6-methyl-octahydro-1h-quinolizin-4-yl)pentan-2-yl benzoate

C22H33NO2 (343.2511)


   

11-methyl-5-methylidene-16-oxa-13-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹³,¹⁷]docosan-6-ol

11-methyl-5-methylidene-16-oxa-13-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹³,¹⁷]docosan-6-ol

C22H33NO2 (343.2511)


   

(1s,2r,4r,6r,7r,10s,11s,12s)-11-methyl-5-methylidene-14-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

(1s,2r,4r,6r,7r,10s,11s,12s)-11-methyl-5-methylidene-14-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

C22H33NO2 (343.2511)


   

3-{14-isopropyl-1-methyl-12-azatetracyclo[8.6.0.0²,¹³.0³,⁷]hexadeca-3,11-dien-2-yl}propanoic acid

3-{14-isopropyl-1-methyl-12-azatetracyclo[8.6.0.0²,¹³.0³,⁷]hexadeca-3,11-dien-2-yl}propanoic acid

C22H33NO2 (343.2511)


   

(1s,5r,8r,9r,10s,11r,13r,14s,15s,16r)-7-ethyl-5-methyl-12-methylidene-7-azahexacyclo[7.6.2.2¹⁰,¹³.0¹,⁸.0⁵,¹⁶.0¹⁰,¹⁵]nonadecane-11,14-diol

(1s,5r,8r,9r,10s,11r,13r,14s,15s,16r)-7-ethyl-5-methyl-12-methylidene-7-azahexacyclo[7.6.2.2¹⁰,¹³.0¹,⁸.0⁵,¹⁶.0¹⁰,¹⁵]nonadecane-11,14-diol

C22H33NO2 (343.2511)


   

(1r,2r,4r,6r,7r,10s,11s,12r)-11-methyl-5-methylidene-13-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

(1r,2r,4r,6r,7r,10s,11s,12r)-11-methyl-5-methylidene-13-oxa-16-azahexacyclo[9.6.3.2⁴,⁷.0¹,¹⁰.0²,⁷.0¹²,¹⁶]docosan-6-ol

C22H33NO2 (343.2511)


   

3-[(1r,2r,7s,10r,13r,14s)-14-isopropyl-1-methyl-12-azatetracyclo[8.6.0.0²,¹³.0³,⁷]hexadeca-3,11-dien-2-yl]propanoic acid

3-[(1r,2r,7s,10r,13r,14s)-14-isopropyl-1-methyl-12-azatetracyclo[8.6.0.0²,¹³.0³,⁷]hexadeca-3,11-dien-2-yl]propanoic acid

C22H33NO2 (343.2511)


   

3-[(1s,2r,7r,10s,14r)-14-isopropyl-1-methyl-12-azapentacyclo[8.6.0.0²,¹³.0³,⁷.0⁷,¹¹]hexadec-12-en-2-yl]propanoic acid

3-[(1s,2r,7r,10s,14r)-14-isopropyl-1-methyl-12-azapentacyclo[8.6.0.0²,¹³.0³,⁷.0⁷,¹¹]hexadec-12-en-2-yl]propanoic acid

C22H33NO2 (343.2511)