(+/-)-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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Hazard and Precautionary Statements (GHS)

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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

CHINA 17 Switzerland 1 United States 2 Global 20

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1200-93-7, (+/-)-MELLEINRelated Search:

(+/-)-MELLEIN

(±)-3,4-Dihydro-8-hydroxy-3-methyl-2-benzopyran-1-one

1H-2-Benzopyran-1-one, 3,4-dihydro-8-hydroxy-3-methyl-

(S)-(+)-ochracin

ochracin, 10 mM in DMSO

1200-93-7