ChemicalBook > CAS DataBase List > 3,4-dihydro-1H-2-benzopyran-1-one

3,4-dihydro-1H-2-benzopyran-1-one

Product Name
3,4-dihydro-1H-2-benzopyran-1-one
CAS No.
4702-34-5
Chemical Name
3,4-dihydro-1H-2-benzopyran-1-one
Synonyms
Isochroman-1-one;1-Isochromanone;1-Isochromanon;Einecs 225-179-4;1-oxo-isochroMan;1-Isochromanone>3,4-Dihydroisocoumarin;3,4-dihydroisochroMen-1-one;4-dihydro-1H-2-benzopyran-1-one;3,4-dihydro-1H-2-benzopyran-1-one
CBNumber
CB4906430
Molecular Formula
C9H8O2
Formula Weight
148.16
MOL File
4702-34-5.mol
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3,4-dihydro-1H-2-benzopyran-1-one Property

Melting point:
37-39 °C
Boiling point:
160°C/11mmHg(lit.)
Density 
1.2030
refractive index 
1.5640 to 1.5680
storage temp. 
Sealed in dry,Room Temperature
form 
clear liquid
color 
Colorless to Light orange to Yellow
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Safety

HS Code 
2932990090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

P405Store locked up.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TCI Chemical
Product number
I0953
Product name
1-Isochromanone
Purity
>98.0%(GC)
Packaging
1g
Price
$61
Updated
2024/03/01
TCI Chemical
Product number
I0953
Product name
1-Isochromanone
Purity
>98.0%(GC)
Packaging
5g
Price
$243
Updated
2024/03/01
TRC
Product number
I779055
Product name
Isochroman-1-one
Packaging
10mg
Price
$45
Updated
2021/12/16
Oakwood
Product number
209012
Product name
Isochroman-1-one
Purity
95+%
Packaging
5g
Price
$54
Updated
2021/12/16
SynQuest Laboratories
Product number
2H25-1-2D
Product name
Isochroman-1-one
Purity
98%
Packaging
1g
Price
$29
Updated
2021/12/16
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3,4-dihydro-1H-2-benzopyran-1-one Chemical Properties,Usage,Production

Definition

ChEBI: The simplest member of the class of dihydroisocoumarins that is the 3,4-dihydro derivative of isocoumarin.

Synthesis Reference(s)

Journal of the American Chemical Society, 79, p. 3165, 1957 DOI: 10.1021/ja01569a047
Tetrahedron Letters, 37, p. 4179, 1996 DOI: 10.1016/0040-4039(96)00789-7

3,4-dihydro-1H-2-benzopyran-1-one Preparation Products And Raw materials

Raw materials

Preparation Products

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3,4-dihydro-1H-2-benzopyran-1-one Suppliers

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View Lastest Price from 3,4-dihydro-1H-2-benzopyran-1-one manufacturers

Shenzhen Nexconn Pharmatechs Ltd
Product
Isochroman-1-one 4702-34-5
Price
US $1.00-2.00/kg
Min. Order
0.1kg
Purity
97%
Supply Ability
500kg
Release date
2024-04-18
Shaanxi Dideu Medichem Co. Ltd
Product
Isochroman-1-one 4702-34-5
Price
US $1.00-1.50/KG
Min. Order
1KG
Purity
99%
Supply Ability
100000KG
Release date
2024-08-08
Zhuozhou Wenxi import and Export Co., Ltd
Product
3,4-dihydro-1H-2-benzopyran-1-one 4702-34-5
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-06-27

4702-34-5, 3,4-dihydro-1H-2-benzopyran-1-oneRelated Search:

Bengenin Isochroman OCHRATOXIN B HOMOPHTHALIC ANHYDRIDE OCHRATOXIN A (+)-PHYLLODULCIN ALTENUENE UNGERINE NITRATE HIPPEASTRINE HYDROBROMIDE AURORA KA-3195 4-[2-(3,5-DICHLOROPHENYL)HYDRAZONO]-3,4-DIHYDRO-1H-BENZO[C]PYRAN-1,3-DIONE 1H-2-BENZOPYRAN-1,3,4-TRIONE 4-[N-(4-METHOXYPHENYL)HYDRAZONE] 4-[(E)-3-PHENYL-PROP-2-EN-(E)-YLIDENE]-ISOCHROMAN-1,3-DIONE 1H-ISOCHROMENE-1,3,4-TRIONE 4-(N-[3-(TRIFLUOROMETHYL)PHENYL]HYDRAZONE) 1H-ISOCHROMENE-1,3,4-TRIONE 4-[N-(2,4-DICHLOROPHENYL)HYDRAZONE] 1H-ISOCHROMENE-1,3,4-TRIONE 4-(N-PHENYLHYDRAZONE) 1H-ISOCHROMENE-1,3,4-TRIONE 4-[N-(4-FLUOROPHENYL)HYDRAZONE] 3-PHENYL-3,4-DIHYDROISOCOUMARIN

  • 3,4-dihydro-1H-2-benzopyran-1-one
  • 1-Isochromanone
  • 3,4-Dihydroisocoumarin
  • Isochroman-1-one
  • 1H-2-Benzopyran-1-one,3,4-dihydro-(9CI)
  • Einecs 225-179-4
  • 3,4-dihydroisochroMen-1-one
  • 1-oxo-isochroMan
  • 1H-2-Benzopyran-1-one,3,4-dihydro-
  • isochroman-1-one: 3,4-dihydro-1H-2-benzopyran-1-one
  • 1-Isochromanon
  • 1-Isochromanone&gt
  • 4-dihydro-1H-2-benzopyran-1-one
  • 4702-34-5
  • PHENYL