Cas 1257403-40-9,ethyl 2-(4-methoxyphenyl)-2-phenyl-2H-naphtho[1,2-b]pyran-5-carboxylate

1257403-40-9

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Basic information

Product Name: ethyl 2-(4-methoxyphenyl)-2-phenyl-2H-naphtho[1,2-b]pyran-5-carboxylate
Synonyms: ethyl 2-(4-methoxyphenyl)-2-phenyl-2H-naphtho[1,2-b]pyran-5-carboxylate
CAS NO:1257403-40-9
Molecular Formula:
Molecular Weight: 436.507
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: ethyl 2-(4-methoxyphenyl)-2-phenyl-2H-naphtho[1,2-b]pyran-5-carboxylate(CAS DataBase Reference)
NIST Chemistry Reference: ethyl 2-(4-methoxyphenyl)-2-phenyl-2H-naphtho[1,2-b]pyran-5-carboxylate(1257403-40-9)
EPA Substance Registry System: ethyl 2-(4-methoxyphenyl)-2-phenyl-2H-naphtho[1,2-b]pyran-5-carboxylate(1257403-40-9)

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: 1257403-40-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 1257403-40-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,4,0 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1257403-40:
(9*1)+(8*2)+(7*5)+(6*7)+(5*4)+(4*0)+(3*3)+(2*4)+(1*0)=139
139 % 10 = 9
So 1257403-40-9 is a valid CAS Registry Number.

1257403-40-9Upstream product

1257403-40-9Downstream Products

1257403-40-9Relevant academic research and scientific papers

The influence of a 1,1-diarylvinyl moiety on the photochromism of naphthopyrans

Gabbutt, Christopher D.,Heron, B. Mark,Kilner, Colin,Kolla, Suresh B.

experimental part, p. 4874 - 4883 (2010/11/19)

1,1,3-Triarylpent-4-en-1-yn-3-ols, efficiently obtained in two steps from 1,1,3-triarylprop-2-yn-1-ols by a Meyer-Schuster rearrangement and subsequent addition of lithium trimethylsilylacetylide, react with either a 1- or 2- naphthol to afford photochrom

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