Cas 74685-19-1,3,4-Dihydro-2,2-dimethoxy-4-phenylindeno[1,2-b]pyran-5(2H)-one

74685-19-1

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Basic information

Product Name: 3,4-Dihydro-2,2-dimethoxy-4-phenylindeno[1,2-b]pyran-5(2H)-one
Synonyms: 3,4-Dihydro-2,2-dimethoxy-4-phenylindeno[1,2-b]pyran-5(2H)-one
CAS NO:74685-19-1
Molecular Formula: C₂₀H₁₈O₄
Molecular Weight: 0
EINECS: N/A
Product Categories: N/A
Mol File: 74685-19-1.mol

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: /
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 3,4-Dihydro-2,2-dimethoxy-4-phenylindeno[1,2-b]pyran-5(2H)-one(CAS DataBase Reference)
NIST Chemistry Reference: 3,4-Dihydro-2,2-dimethoxy-4-phenylindeno[1,2-b]pyran-5(2H)-one(74685-19-1)
EPA Substance Registry System: 3,4-Dihydro-2,2-dimethoxy-4-phenylindeno[1,2-b]pyran-5(2H)-one(74685-19-1)

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: 74685-19-1(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 74685-19-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,6,8 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 74685-19:
(7*7)+(6*4)+(5*6)+(4*8)+(3*5)+(2*1)+(1*9)=161
161 % 10 = 1
So 74685-19-1 is a valid CAS Registry Number.

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74685-19-1Relevant academic research and scientific papers

Organic Lewis Acids, 34 Thermal -Cycloaddition of Enol Ethers to 1,1-Dicarbonyl Substituted Ethenes

Bitter, Joerg,Leitich, Johannes,Partale, Hans,Polansky, Oskar E.,Riemer, Werner,et al.

, p. 1020 - 1032 (2007/10/02)

Enol ethers such as ethyl vinyl ether and 1,1-dimethoxyethene (3f) react thermally, in some instances below 0 deg C, with cyclic 2-alkylidene-1,3-dicarbonyl compounds such as 1 and 2 to give -cycloadducts 4 and 5, respectively (cyclic enol acetal

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