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D104809

Sigma-Aldrich

Dihydrocoumarin

99%

Synonym(s):

3,4-Dihydro-1-benzopyran-2-one, Benzodihydropyrone, Hydrocoumarin

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About This Item

Empirical Formula (Hill Notation):
C9H8O2
CAS Number:
119-84-6
Molecular Weight:
148.16
EC Number:
204-354-9
MDL number:
MFCD00006881
UNSPSC Code:
12352100
PubChem Substance ID:
24893333
NACRES:
NA.22

Quality Level

100

Assay

99%

form

liquid

refractive index

n20/D 1.556 (lit.)

bp

272 °C (lit.)

mp

24-25 °C (lit.)

density

1.169 g/mL at 25 °C (lit.)

SMILES string

O=C1CCc2ccccc2O1

InChI

1S/C9H8O2/c10-9-6-5-7-3-1-2-4-8(7)11-9/h1-4H,5-6H2

InChI key

VMUXSMXIQBNMGZ-UHFFFAOYSA-N

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Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302,H317

Hazard Classifications

Acute Tox. 4 Oral - Skin Sens. 1

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

>212.0 °F - closed cup

Flash Point(C)

> 100 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Jie Chen et al.
The Journal of organic chemistry, 77(2), 999-1009 (2011-12-20)
A facile and enantioselective approach toward 3,4-dihydroisocoumarin was developed. The method involved an amino-thiocarbamate catalyzed enantioselective bromocyclization of styrene-type carboxylic acids, yielding 3-bromo-3,4-dihydroisocoumarins with good yields and ee's. 3-Bromo-3,4-dihydroisocoumarins are versatile building blocks for various dihydroisocoumarin derivatives in which the
The epicutaneous maximization test.
J P Guillot et al.
Current problems in dermatology, 14, 220-247 (1985-01-01)
Marc Vocanson et al.
Contact dermatitis, 57(6), 361-364 (2007-11-09)
There is controversy as to whether coumarin, an ingredient in cosmetics and fragrances, is a contact allergen involved in fragrance allergy. We recently showed that the purity of coumarin is a critical parameter for its allergenicity because coumarin preparations containing
S L Born et al.
Toxicology and applied pharmacology, 151(1), 45-56 (1998-08-26)
Coumarin is a known hepatotoxicant in laboratory animals, particularly rats. However, the mouse lung was identified as a major target organ in a chronic bioassay, with an oral gavage dosage of 200 mg/kg coumarin increasing the incidence of alveolar/bronchiolar adenomas
Ahmad Shaabani et al.
Organic letters, 10(12), 2581-2584 (2008-05-28)
A novel isocyanide-based four-component reaction between a 2-hydroxybenzaldehyde, Meldrum's acid, an isocyanide, and an aromatic or an aliphatic alcohol efficiently provide 3,4-dihydrocoumarin derivatives in good to excellent yields without using any catalyst or activation. The reaction can be carried out
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