How to Use this Library

  • Full & Truncated CAS Number - To obtain an exact Chemical compound enter a full CAS registry number of the compound in the Search box. In the instance where only the truncated part of the CAS registry number is available, enter the truncated part in the search box and you will receive a list of hits with that truncation.

  • Chemical Name Search - Because chemical names vary significantly, chemical name searches are frequently inconclusive. For this reason, our search engine is designed to provide a nested result. For example, if you are searching for an acid and do not know its CAS Number, executing a search with just the term acid in the Search box will result in a list of all available compounds in the Library with the term acid in their name. Likewise, executing a search with the term alpha in the Search box will produce a list of all entries in which this term occurs. Similarly, if the product you are looking for is Pyridine, you can enter the word Pyrid in the search box and you will receive a list of all Pyridines.

  • Molecular Formula - Expressed as CtHxNyOwSz where t, x, y, w, z represent, respectively, the integer corresponding to the number of atoms of that element in the Molecular Formula, for example: C22H32NO2.

Note that, as with a term that is part of the chemical name, e.g., acid as discussed above, you can alternatively enter a truncation of the chemical formula, e.g., NO2, or a truncation of the CAS Number, e.g., -32.

Note, however, that you cannot simultaneously execute a search using two or more truncated terms, e.g. you cannot search for a truncated CAS Number and a truncated chemical name and/or truncated molecular formula. Thus, specifying -32 and NO2 will not return any results even if there is a compound with -32 in the CAS Number and NO2 in the formula.

In addition to searching, you can also filter your results by chemical class by selecting a chemical class from the pull-down. For example, type acid in the search box and then select Lipids from the pull-down to find all Lipid compounds that have acid as part of their name. If you leave the Search Box empty, you can use the chemical class filter to find all compounds in a class.

Rare Phytochemical Class   Search
of 6548 Items
Rare Phytochemical ClassCompoundCAS NumberChemical StructureMolecular FormulaMolecular WeightDescriptionRequest a Quote
Flavonoids (-)-Epiafzelechin 24808-04-6 C15H14O5 274.3 Powder
Flavonoids (-)-N-Methylsedridine 41447-15-8 C9H19NO 157.3 Oil
Flavonoids (+)-Afzelechin 2545-00-8 C15H14O5 274.3 Powder
Flavonoids (+)-N-Methylallosedridine 41447-16-9 C9H19NO 157.3 Oil
Flavonoids (+/-)-Vestitol 56701-24-7    
Flavonoids (2S,3S)-(-)-Glucodistylin 129212-92-6    
Flavonoids (S)-2,3,9,10-Tetrahydro-5-hydroxy-2-(4-hydroxyphenyl)-8,8-dimethyl-4H,8H-benzo[1,2-b:3,4-b']dipyran-4-one 70897-14-2 C20H20O5 340.4 Powder
Flavonoids 1"-Methoxyerythrinin C 221002-11-5    
Flavonoids 11-Hydroxytephrosin 72458-85-6    
Flavonoids 12-Deoxo-12alpha-acetoxyelliptone 150226-21-4    
Flavonoids 14,15-Didehydrovincamenine 112219-48-4 C19H20N2 276.4 Oil
Flavonoids 1-Hydroxy-3,4,5-trimethoxyxanthone 23251-63-0 C16H14O6 302.28 Powder
Flavonoids 1-Hydroxyrutaecarpine 53600-24-1 C18H13N3O2 303.3 Yellow powder
Flavonoids 1-Methoxycarbonyl-beta-carboline 3464-66-2 C13H10N2O2 226.2 Yellow powder
Flavonoids 2",4"-Di-O-(E-p-coumaroyl)afzelin 163434-73-9    
Flavonoids 2",4"-Di-O-(Z-p-coumaroyl)afzelin 205534-17-4    
Flavonoids 2,3,2",3"- Tetrahydroochnaflavone 678138-59-5 C30H22O10 542.5 Yellow powder
Flavonoids 2',3,5,6',7-Pentahydroxyflavanone 80366-15-0 C15H12O7 304.3 Powder
Flavonoids 2,3-Dehydrokievitone 74161-25-4 C20H18O6 354.4 Yellow powder
Flavonoids 2,3-Dihydroamentoflavone 7,4'-dimethyl ether 873999-88-3    
Flavonoids 2,3-Dihydroheveaflavone 110382-42-8    
Flavonoids 2,3-Dihydrohinokiflavone 34292-87-0    
Flavonoids 2,3-Dihydroisoginkgetin 828923-27-9    
Flavonoids 2,3-Dihydropodocarpusflavone A 852875-96-8    
Flavonoids 2,3-Dihydrosciadopitysin 34421-19-7    
Flavonoids 2',4',5'-Trimethoxy-2'',2''-dimethylpyrano[5'',6'':6,7]isoflavone 211799-56-3 C23H22O6 394.4 Powder
Flavonoids 2',4'-Dihydroxy-7-methoxy-8-prenylflavan 331954-16-6    
Flavonoids 2',5,6',7-Tetraacetoxyflavanone 80604-17-7 C23H20O10 456.4 Powder
Flavonoids 2',5,6',7-Tetrahydroxyflavanone 80604-16-6 C15H12O6 288.3 Powder
Flavonoids 2',5,7-Trihydroxy-8-methoxyflavanone 112408-71-6 C16H14O6 302.3 Powder
Flavonoids 2',6',7-Triacetoxy-5-hydroxyflavone N/A C21H18O9 414.4 Powder
Flavonoids 2',7-Dihydroxy-5,8-dimethoxyflavanone 1351338-14-1    
Flavonoids 2''-Acetylastragalin 1206734-95-3    
Flavonoids 2H,6H-Benzo[1,2-b:5,4-b']dipyran-6-one, 7-[4-(acetyloxy)phenyl]-5-hydroxy-2,2-dimethyl- 86989-18-6 C22H18O6 378.4 Yellow powder
Flavonoids 2-Hydroxy-7-O- methylscillascillin 52096-50-1 C18H14O7 342.3 Powder
Flavonoids 2'-Hydroxydaidzein 7678-85-5    
Flavonoids 2'-Hydroxygenistein 1156-78-1 C15H10O6 286.2 Yellow powder
Flavonoids 2-Hydroxynaringenin 58124-18-8    
Flavonoids 2''-O-Coumaroyljuglanin 67214-05-5    
Flavonoids 2'-O-Galloylhyperin 53209-27-1 C28H24O16 616.481 Powder
Flavonoids 2'-O-Methylkurarinone 270249-38-2    
Flavonoids 2''-O-Rhamnosylicariside II 135293-13-9    
Flavonoids 2'-O-Rhamnosylvitexin 64820-99-1 C27H30O14 578.52 Powder
Flavonoids 3",4"-Di-O-acetyl-2",6"-di-O-p-coumaroylastragalin 349545-02-4    
Flavonoids 3",4"-Di-O-acetyl-2",6"-di-O-p-coumaroylastragalin 137018-33-8    
Flavonoids 3-(2,4-Dihydroxybenzyl)-5-hydroxy-7,8-dimethoxy-6-methylchroman-4-one 149180-48-3    
Flavonoids 3,2'-Epilarixinol 1207671-28-0    
Flavonoids 3,3',4',5,5',7-Hexahydroxyflavan 970-73-0 C15H14O7 306.3 Powder
Flavonoids 3,4,4',7- Tetrahydroxyflavan 38412-82-7 C15H14O5 274.3 Powder
Flavonoids 3',4',5',3,5,6,7-Heptamethoxyflavone 17245-30-6 C22H24O9 432.4 Cryst.
Flavonoids 3',4',5',3,5,7,8-Heptamethoxyflavone 21634-52-6 C22H24O9 432.4 Cryst.
Flavonoids 3',4',7-Trimethoxyflavan 116384-26-0 C18H20O4 300.4 Oil
Flavonoids 3,4'-Dihydroxy-3',5,7-trimethoxyflavan 97914-19-7 C18H20O6 332.4 Powder
Flavonoids 3',5,5',7-Tetraacetoxyflavone N/A C23H20O10 456.4 Powder
Flavonoids 3',5,5',7-Tetrahydroxy-4',6-dimethoxyflavone 125537-92-0 C17H14O8 346.3 Yellow powder
Flavonoids 3',5,5',7-Tetrahydroxyflavanone 160436-10-2 C15H12O6 288.3 Powder
Flavonoids 3',5-Dihydroxy-4',5',6,7- tetramethoxyflavone 111537-41-8 C19H18O8 374.4 Yellow powder
Flavonoids 3,5-Dihydroxy-4',7-dimethoxyflavone 15486-33-6 C17H14O6 314.3 Yellow powder
Flavonoids 3,6-Dimethoxyapigenin 22697-65-0    
Flavonoids 3,7-Di-O-methylquercetin 2068-02-2    
Flavonoids 3,7-O-Diacetylpinobanksin 103553-98-6 C19H16O7 356.3 Oil
Flavonoids 3,8''-Biapigenin 101140-06-1 C30H18O10 538.5 Yellow powder
Flavonoids 3,9-Dihydroeucomin 887375-68-0    
Flavonoids 3-Deoxysappanone B 113122-54-6 C16H14O5 286.3 Powder
Flavonoids 3'-Geranyl-3-prenyl-2',4',5,7-tetrahydroxyflavone 1334309-44-2    
Flavonoids 3'-Hydroxy-3,9-dihydroeucomin 107585-75-1 C17H16O6 316.3 Powder
Flavonoids 3-Hydroxy-4',5,7-trimethoxyflavanone 76792-94-4 C18H18O6 330.3 Oil
Flavonoids 3-Hydroxy-5,7- dimethoxy-3',4'-methylenedioxyflavonoid 162602-04-2 C18H18O6 330.3 Powder
Flavonoids 3-Isomangostin 19275-46-8 C24H26O6 410.46 Powder
Flavonoids 3'-Methoxydaidzein 21913-98-4    
Flavonoids 3-O-Acetylpinobanksin 52117-69-8 C17H14O6 314.3 Oil
Flavonoids 3'-O-Methylorobol 36190-95-1 C16H12O6 300.3 Yellow powder
Flavonoids 3-O-Methylquercetin 1486-70-0 C16H12O7 316.3 Yellow powder
Flavonoids 3-O-Methylquercetin tetraacetate 1486-69-7 C24H20O11 484.4 Yellow powder
Flavonoids 4',4'''-Di-O-methylcupressuflavone 74336-91-7 C32H22O10 566.5 Yellow powder
Flavonoids 4',4'''-Di-O-methylisochamaejasmin 1620921-68-7    
Flavonoids 4',5,7-Trihydroxy-6- prenylflavone 68097-13-2 C20H18O5 338.4 Yellow powder
Flavonoids 4',5-Dihydroxy-3',5',6,7- tetramethoxyflavone 83133-17-9 C19H18O8 374.4 Yellow powder
Flavonoids 4',5-Dihydroxyflavone 6665-67-4 C15H10O4 254.2 Yellow powder
Flavonoids 4',7-Di-O-methylnaringenin 29424-96-2 C17H16O5 300.3 Cryst.
Flavonoids 4'-Demethyl-3,9-dihydroeucomin 107585-77-3 C16H14O5 286.3 Powder
Flavonoids 4'-Demethyleucomin 34818-83-2 C16H12O5 284.3 Yellow powder
Flavonoids 4'-Hydroxywogonin 57096-02-3 C16H12O6 300.3 Yellow powder
Flavonoids 4'-O-Acetylchrysosplenetin N/A C21H20O9 416.4 Yellow powder
Flavonoids 4'-O-beta-Glucosyl-5-O-methylvisamminol 84272-85-5 C22H28O10 452.46 Powder
Flavonoids 4'-O-Methylbroussochalcone B 20784-60-5 C21H22O4 338.4 Yellow powder
Flavonoids 4'-O-Methyllicoflavanone 1038753-13-7    
Flavonoids 4-O-Methylsappanol 104778-16-7 C17H18O6 318.3 Powder
Flavonoids 5,7,3',4',5'-Pentamethoxyflavone 53350-26-8 C20H20O7 372.37 Powder
Flavonoids 5,7,3',4'-Tetrahydroxy-3-methoxy-8,5'-diprenylflavone 1353676-65-9    
Flavonoids 5,7,3',4'-Tetrahydroxy-3-methoxy-8-geranylflavone 1605304-56-0    
Flavonoids 5,7,3'-Trihydroxy-4'-methoxy-8-prenylflavanone 1268140-15-3    
Flavonoids 5,7,3'-Trihydroxy-6,4',5'-trimethoxyflavone 310888-07-4 C18H18O8 362.3 Powder
Flavonoids 5,7,4'-Trihydroxy-3,6-dimethoxy-3',5'-diprenylflavone 1246926-08-8    
Flavonoids 5,7,4'-Trihydroxy-3,6-dimethoxy-3'-prenylflavone 959421-20-6    
Flavonoids 5,7,4'-Tri-O-methylcatechin 105330-59-4    
Flavonoids 5,7,8,4'-Tetramethoxyflavone 6601-66-7    
Flavonoids 5,7-Diacetoxy-3,4',8-trimethoxyflavone 5128-43-8 C22H20O9 428.4 Yellow powder
Flavonoids 5,7-Diacetoxy-8-methoxyflavone 23246-80-2 C20H16O7 368.3 Cryst.
Flavonoids 5,7-Diacetoxyflavone 6665-78-7 C19H14O6 338.3 Powder