ChemicalBook > CAS DataBase List > (+/-)-MELLEIN
(+/-)-MELLEIN
- Product Name
- (+/-)-MELLEIN
- CAS No.
- 1200-93-7
- Chemical Name
- (+/-)-MELLEIN
- Synonyms
- (+/-)-MELLEIN;(S)-(+)-ochracin;ochracin, 10 mM in DMSO;(±)-3,4-Dihydro-8-hydroxy-3-methyl-2-benzopyran-1-one;1H-2-Benzopyran-1-one, 3,4-dihydro-8-hydroxy-3-methyl-
- CBNumber
- CB6502748
- Molecular Formula
- C10H10O3
- Formula Weight
- 178.18
- MOL File
- 1200-93-7.mol
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(+/-)-MELLEIN Property
- Melting point:
- 37-39 °C
- Boiling point:
- 392.7±42.0 °C(Predicted)
- Density
- 1.252±0.06 g/cm3(Predicted)
- storage temp.
- 2-8°C
- pka
- 9.86±0.40(Predicted)
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Safety
- Safety Statements
- 22-24/25
- WGK Germany
- 3
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(+/-)-MELLEIN Chemical Properties,Usage,Production
Definition
ChEBI: Mellein is an isochromane that is 3,4-dihydroisocoumarin bearing methyl and hydroxy substituents at positions 3 and 8 respectively. It is functionally related to an isocoumarin.
Purification Methods
Purify it by recrystallisation from H2O or aqueous EtOH. It has UV: at 247 and 314nm. [Arakawa et al. Justusmax Liebigs Ann Chem 728 152 1969, Blair & Newbold Chem Ind (London) 93 1955, J Chem Soc 2871 1955.] The methyl ether has m 66-67o and UV: 242nm ( 7,400) and 305nm ( 4,600). R(-)-Mellein has m56o(aqueous Me2CO), [] D -102.5o (c 1, CHCl3) and R(+)-mellein has m 56-57o(hexane), [] D +102o (c 1, CHCl3) or [] 25 +88o (c 1, MeOH). [Beilstein 18 III/IV 188, 18/1 V 274.]
(+/-)-MELLEIN Preparation Products And Raw materials
Raw materials
Preparation Products
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(+/-)-MELLEIN Suppliers
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- Country
- Switzerland
- ProdList
- 6896
- Advantage
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