Cas 183662-07-9,2H-Naphtho[1,2-b]pyran-2-one, 3,4-dihydro-4-(4-methoxyphenyl)-4-methyl-

183662-07-9

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Basic information

Product Name: 2H-Naphtho[1,2-b]pyran-2-one, 3,4-dihydro-4-(4-methoxyphenyl)-4-methyl-
Synonyms:
CAS NO:183662-07-9
Molecular Formula: C21H18O3
Molecular Weight: 318.372
EINECS: N/A
Product Categories: N/A

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: 2H-Naphtho[1,2-b]pyran-2-one, 3,4-dihydro-4-(4-methoxyphenyl)-4-methyl-(CAS DataBase Reference)
NIST Chemistry Reference: 2H-Naphtho[1,2-b]pyran-2-one, 3,4-dihydro-4-(4-methoxyphenyl)-4-methyl-(183662-07-9)
EPA Substance Registry System: 2H-Naphtho[1,2-b]pyran-2-one, 3,4-dihydro-4-(4-methoxyphenyl)-4-methyl-(183662-07-9)

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: 183662-07-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 183662-07-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,6,6 and 2 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 183662-07:
(8*1)+(7*8)+(6*3)+(5*6)+(4*6)+(3*2)+(2*0)+(1*7)=149
149 % 10 = 9
So 183662-07-9 is a valid CAS Registry Number.

183662-07-9Upstream product

183662-07-9Downstream Products

183662-07-9Relevant academic research and scientific papers

Convenient access to 4,4-disubstituted 4H-chromenes. Synthesis of 4-methyl-4-(4-methoxyphenyl)-benzo[h]-4H-chromene

De Keukeleire,Saeyens

, p. 4397 - 4402 (1996)

4-Methyl-4-(4-methoxyphenyl)-benzo[h]-4H-chromene is synthesised by condensation of 4-methoxyacetophenone and ethyl acetate in strong base, followed by coupling with 1-naphthol, reduction to the epimeric lactols and elimination of water.

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