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 137 Items
Rare Phytochemical ClassCompoundCAS NumberChemical StructureMolecular FormulaMolecular WeightDescriptionRequest a Quote
Quinones 2,6-Dimethoxy-1,4-benzoquinone 530-55-2 C8H8O4 168.2 Yellow powder
Quinones 2,6-Dimethoxy-1-acetonylquinol 2215-96-5 C11H14O5 226.2 Powder
Quinones 2-Carbamoyl-3-hydroxy-1,4-naphthoquinone 103646-20-4    
Quinones 2-Methoxystypandrone 85122-21-0 C14H12O5 260.2 Red powder
Quinones 3,4-Didehydrosapriparaquione 142763-37-9    
Quinones 4,9-Dihydroxy-alpha-lapachone 56473-67-7 C15H14O5 274.3 Yellow powder
Quinones 4-Hydroxysapriparaquinone 120278-25-3    
Quinones 9-Hydroxy-alpha-lapachone 22333-58-0 C15H14O4 258.3 Yellow powder
Quinones 9-Methoxy-alpha-lapachone 35241-80-6 C16H16O4 272.3 Yellow powder
Quinones Acetyl Shikonin 24502-78-1 C18H18O6 330.33 Powder
Quinones Aloe Emodin 481-72-1 C15H10O5 270.24 Powder
Quinones alpha-Lapachone 4707-33-9 C15H14O3 242.3 Yellow powder
Quinones alpha-Tocopherolquinone 72657-56-8 C29H50O3 446.7 Yellow oil
Quinones alpha-Tocopherolquinone 7559-04-8    
Quinones beta,beta-Dimethylacrylalkannin 34539-65-6 C21H22O6 370.4 Powder
Quinones Danshenxinkun A 65907-75-7    
Quinones Dehydro-alpha-lapachone 15297-92-4 C15H12O3 240.3 Orange powder
Quinones Deoxylapachol 3568-90-9 C15H14O2 226.3 Yellow oil
Quinones Deoxyneocryptotanshinone 27468-20-8    
Quinones Dihydroisotanshinone I 20958-18-3    
Quinones Dihydroisotanshinone II 260397-58-8 C18H14O3 278.3 Red powder
Quinones Ethyl 2-(1-hydroxy-4-oxo-1-cyclohexa-2,5-dienyl)acetate 60263-06-1 C10H12O4 196.2 Oil
Quinones Isodiospyrin 20175-84-2 C22H14O6 374.4 Red powder
Quinones Lapachol 84-79-7 C15H14O3 242.3 Yellow powder
Quinones Neoprzewaquinone A 630057-39-5 C36H28O6 556.6 Red powder
Quinones Phyllostine 27270-89-9    
Quinones Przewaquinone A 76843-23-7    
Quinones Rhein 478-43-3 C15H8O6 284.22 Powder
Quinones Royleanone 6812-87-9    
Quinones Rubioncolin C 132242-52-5    
Quinones Salvisyrianone 250691-57-7    
Quinones Shikonin 517-89-5 C16H16O5 288.3 Powder
Quinones Tanshinone I 568-73-0 C18H12O3 276.3 Red powder
Quinones Tanshinone II 568-72-9 C19H18O3 294.4 Red powder
Quinones Tanshinone IIA 568-72-9 C19H18O3 294.33 Powder
Quinones Tanshinone IIB 17397-93-2 C19H18O4 310.4 Red powder
Quinones Taxoquinone 21764-41-0