Cas 138421-97-3,4H-1-Benzopyran-4-one, 2,3-dihydro-3-(1-phenylethylidene)-, (Z)-

138421-97-3

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Basic information

Product Name: 4H-1-Benzopyran-4-one, 2,3-dihydro-3-(1-phenylethylidene)-, (Z)-
Synonyms:
CAS NO:138421-97-3
Molecular Formula: C17H14O2
Molecular Weight: 250.297
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: 4H-1-Benzopyran-4-one, 2,3-dihydro-3-(1-phenylethylidene)-, (Z)-(CAS DataBase Reference)
NIST Chemistry Reference: 4H-1-Benzopyran-4-one, 2,3-dihydro-3-(1-phenylethylidene)-, (Z)-(138421-97-3)
EPA Substance Registry System: 4H-1-Benzopyran-4-one, 2,3-dihydro-3-(1-phenylethylidene)-, (Z)-(138421-97-3)

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: 138421-97-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 138421-97-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,4,2 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 138421-97:
(8*1)+(7*3)+(6*8)+(5*4)+(4*2)+(3*1)+(2*9)+(1*7)=133
133 % 10 = 3
So 138421-97-3 is a valid CAS Registry Number.

138421-97-3Upstream product

109754-29-2 C₁₇H₁₄N₂O₂

138421-97-3Downstream Products

138421-97-3Relevant academic research and scientific papers

Thermal decomposition of some new spiro-1-pyrazolines

Toth,Levai,Dinya,Snatzke

, p. 8119 - 8132 (2007/10/02)

The thermal decomposition of spiro-1-pyrazolines 2 obtained by the cycloaddition of exocyclic α,β-unsaturated ketones with diazomethane gives spirocyclopropanes 4 with high selectivity and the new β-methyl-3-benzylidene derivatives 3. The configuration and conformation of the thermolysis products 3 and 4 were elucidated by different n.m.r. methods.

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