1.0 2010-04-08 22:10:01 UTC 2025-11-18 23:34:30 UTC FDB012166 Racemethionine Flavouring ingredient; dietary supplement Methionine is an alpha-amino acid with the chemical formula HO2CCH(NH2)CH2CH2SCH3. This essential amino acid is classified as nonpolar. Racemethionine is found in many foods, some of which are spinach, yellow bell pepper, saskatoon berry, and red beetroot. (+-)-Methionine (+/-)-2-Amino-4-(methylmercapto)butyric acid 2-Amino-4-(methylmercapto)butyric acid 2-Amino-4-(methylsulfanyl)butanoic acid 2-amino-4-(methylthio)-Butyric acid 2-Amino-4-(methylthio)butanoic acid 2-Amino-4-(methylthio)butyric acid 2-Amino-4-methylthiobutanoic acid alpha-Amino-gamma-(methylthio)butyric acid alpha-Amino-gamma-methylmercaptobutyric acid Butyric acid, 2-amino-4-(methylthio)- DL-2-Amino-4-(methylthio)-butyric acid DL-2-Amino-4-(methylthio)butanoic acid DL-2-Amino-4-(methylthio)butyric acid DL-2-Amino-4-methylthiobutanoic acid DL-Methionine FEMA 3301 Methionine, DL- Racemethionine, USAN C5H11NO2S 149.211 149.051049291 2-amino-4-(methylsulfanyl)butanoic acid methionine 59-51-8 CSCCC(N)C(O)=O InChI=1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8) FFEARJCKVFRZRR-UHFFFAOYSA-N belongs to the class of organic compounds known as methionine and derivatives. Methionine and derivatives are compounds containing methionine or a derivative thereof resulting from reaction of methionine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom. Methionine and derivatives Organic compounds Organic acids and derivatives Carboxylic acids and derivatives Amino acids, peptides, and analogues Aliphatic acyclic compounds Alpha amino acids Amino acids Carbonyl compounds Carboxylic acids Dialkylthioethers Hydrocarbon derivatives Monoalkylamines Monocarboxylic acids and derivatives Organic oxides Organopnictogen compounds Sulfenyl compounds Thia fatty acids Aliphatic acyclic compound Alpha-amino acid Amine Amino acid Carbonyl group Carboxylic acid Dialkylthioether Fatty acid Fatty acyl Hydrocarbon derivative Methionine or derivatives Monocarboxylic acid or derivatives Organic nitrogen compound Organic oxide Organic oxygen compound Organonitrogen compound Organooxygen compound Organopnictogen compound Organosulfur compound Primary aliphatic amine Primary amine Sulfenyl compound Thia fatty acid Thioether alpha-amino acid sulfur-containing amino acid logp -1.85 ALOGPS logs -0.80 ALOGPS solubility 2.39e+01 g/l ALOGPS melting_point Mp 281° dec. logp -2.2 ChemAxon pka_strongest_acidic 2.53 ChemAxon pka_strongest_basic 9.5 ChemAxon iupac 2-amino-4-(methylsulfanyl)butanoic acid ChemAxon average_mass 149.211 ChemAxon mono_mass 149.051049291 ChemAxon smiles CSCCC(N)C(O)=O ChemAxon formula C5H11NO2S ChemAxon inchi InChI=1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8) ChemAxon inchikey FFEARJCKVFRZRR-UHFFFAOYSA-N ChemAxon polar_surface_area 63.32 ChemAxon refractivity 37.59 ChemAxon polarizability 15.61 ChemAxon rotatable_bond_count 4 ChemAxon acceptor_count 3 ChemAxon donor_count 2 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::EiMs 144 Specdb::CMs 16410 Specdb::CMs 31950 Specdb::CMs 31951 Specdb::CMs 43605 Specdb::CMs 101464 Specdb::CMs 101465 Specdb::CMs 122171 Specdb::CMs 148893 Specdb::CMs 868374 Specdb::CMs 868375 Specdb::CMs 868376 Specdb::MsMs 20276 Specdb::MsMs 20277 Specdb::MsMs 20278 Specdb::MsMs 21827 Specdb::MsMs 21828 Specdb::MsMs 21829 Specdb::MsMs 438679 Specdb::MsMs 440030 Specdb::MsMs 445218 Specdb::MsMs 445219 Specdb::MsMs 445220 Specdb::MsMs 445221 Specdb::MsMs 447502 Specdb::MsMs 447503 Specdb::MsMs 447504 Specdb::MsMs 447505 Specdb::MsMs 447506 Specdb::MsMs 447507 Specdb::MsMs 447508 Specdb::MsMs 447509 Specdb::MsMs 447510 Specdb::MsMs 447511 Specdb::MsMs 447512 Specdb::MsMs 451870 Specdb::MsMs 2230971 Specdb::NmrOneD 3251 Specdb::NmrOneD 123838 Specdb::NmrOneD 123839 Specdb::NmrOneD 123840 Specdb::NmrOneD 123841 Specdb::NmrOneD 123842 Specdb::NmrOneD 123843 Specdb::NmrOneD 123844 Specdb::NmrOneD 123845 Specdb::NmrOneD 123846 Specdb::NmrOneD 123847 Specdb::NmrOneD 123848 Specdb::NmrOneD 123849 Specdb::NmrOneD 123850 Specdb::NmrOneD 123851 Specdb::NmrOneD 123852 Specdb::NmrOneD 123853 Specdb::NmrOneD 123854 Specdb::NmrOneD 123855 Specdb::NmrOneD 123856 Specdb::NmrOneD 123857 HMDB33951 16811 #<Reference:0x000055ce3101d678> #<Reference:0x000055ce3101d420> #<Reference:0x000055ce3101d178> #<Reference:0x000055ce3101cf98> #<Reference:0x000055ce3101c250> Barley Type 1 specific Hordeum vulgare 4513 96.429865 160.0 32.85973034 mg/100 g Broccoli Type 1 specific Brassica oleracea var. italica 36774 40.095 76.0 4.19 mg/100 g Carrot Type 1 specific Daucus carota ssp. sativus 79200 7.655 9.0 6.31 mg/100 g Cucumber Type 1 specific Cucumis sativus 3659 6.75 9.0 4.5 mg/100 g Dill Type 1 specific Anethum graveolens 40922 32.59 32.59 32.59 mg/100 g Eggplant Type 1 specific Solanum melongena 4111 8.015 10.0 6.03 mg/100 g Garden onion Type 1 specific Allium cepa 4679 10.4 12.0 8.8 mg/100 g Green bean Type 1 specific Phaseolus vulgaris 3885 25.37 28.0 22.74 mg/100 g Green bell pepper Type 1 specific Capsicum annuum 4072 6.7 7.0 6.4 mg/100 g Green zucchini Type 1 specific Cucurbita pepo var. cylindrica 15.475 18.0 12.95 mg/100 g Japanese pumpkin Type 1 specific Cucurbita maxima 3661 7.55 8.1 7.0 mg/100 g Nanking cherry Type 1 specific Prunus tomentosa 105667 5.0 5.0 5.0 mg/100 g Oat Type 1 specific Avena sativa 4498 230.0 230.0 230.0 mg/100 g Orange bell pepper Type 1 specific Capsicum annuum 4072 10.0 10.0 10.0 mg/100 g Parsnip Type 1 specific Pastinaca sativa 4041 16.426369 21.0 11.85273803 mg/100 g Potato Type 1 specific Solanum tuberosum 4113 17.585 26.0 9.17 mg/100 g Red beetroot Type 1 specific Beta vulgaris var. rubra 8.0 8.0 8.0 mg/100 g Red bell pepper Type 1 specific Capsicum annuum 4072 7.575836 10.0 5.151671579 mg/100 g Red raspberry Type 1 specific Rubus idaeus 32247 0.206598 0.206598462 0.206598462 mg/100 g Romaine lettuce Type 1 specific Lactuca sativa L. var. longifolia 9.4 15.0 3.8 mg/100 g Rye Type 1 specific Secale cereale 4550 150.0 150.0 150.0 mg/100 g Saskatoon berry Type 1 specific Amelanchier alnifolia 32219 3.6 7.0 0.2 mg/100 g Spinach Type 1 specific Spinacia oleracea 3562 16.1 26.0 6.2 mg/100 g Sunburst squash (pattypan squash) Type 1 specific Cucurbita pepo var. clypeata 17.1 20.0 14.2 mg/100 g Swiss chard Type 1 specific Beta vulgaris ssp. cicla 1527200 19.0 19.0 19.0 mg/100 g Turnip Type 1 specific Brassica rapa var. rapa 51350 4.19 7.0 1.38 mg/100 g Wheat Type 1 specific Triticum 4564 385.833686 480.0 260.0 mg/100 g White cabbage Type 1 specific Brassica oleracea L. var. capitata L. f. alba DC. 9.365 9.73 9.0 mg/100 g Yellow bell pepper Type 1 specific Capsicum annuum 4072 6.0 7.0 5.0 mg/100 g Yellow wax bean Type 1 specific Phaseolus vulgaris 3885 28.75 29.5 28.0 mg/100 g Yellow zucchini Type 1 specific Cucurbita pepo var. cylindrica 14.38 18.0 10.76 mg/100 g acidic mild sulfurous