Cas 139958-93-3,1H-2-Benzopyran-1-one, 3,4-dihydro-8-hydroxy-5,6-dimethoxy-3-methyl-

139958-93-3

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Basic information

Product Name: 1H-2-Benzopyran-1-one, 3,4-dihydro-8-hydroxy-5,6-dimethoxy-3-methyl-
Synonyms:
CAS NO:139958-93-3
Molecular Formula: C12H14O5
Molecular Weight: 238.24
EINECS: N/A
Product Categories: N/A
Mol File: 139958-93-3.mol
Article Data: 1

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 1H-2-Benzopyran-1-one, 3,4-dihydro-8-hydroxy-5,6-dimethoxy-3-methyl-(CAS DataBase Reference)
NIST Chemistry Reference: 1H-2-Benzopyran-1-one, 3,4-dihydro-8-hydroxy-5,6-dimethoxy-3-methyl-(139958-93-3)
EPA Substance Registry System: 1H-2-Benzopyran-1-one, 3,4-dihydro-8-hydroxy-5,6-dimethoxy-3-methyl-(139958-93-3)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 139958-93-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 139958-93-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,9,5 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 139958-93:
(8*1)+(7*3)+(6*9)+(5*9)+(4*5)+(3*8)+(2*9)+(1*3)=193
193 % 10 = 3
So 139958-93-3 is a valid CAS Registry Number.

139958-93-3Upstream product

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139958-93-3Relevant articles and documents

Synthesis of some mellein derivatives

Bhide, B H,Akolkar, V D,Brahmbhatt, D I

, p. 116 - 117 (2007/10/02)

Synthesis of some mellein derivatives (IIIa-d) have been carried out using o-lithiation reaction. o-Lithiation of substituted N-methylbenzamides (Ia-d) and with n-BuLi followed by alkylation with propylene oxide gives 3-methyl-3,4-dihydroisocoumarins (IIa-c) and 5,6-dimethoxymellein (IIId). (IIa-c) have been converted to IIIa-c by HBr/AcOH or anhyd.AlCl3.

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