Skip to Content
Merck
All Photos(1)

Key Documents

8.22316

Sigma-Aldrich

Coumarin

for synthesis

Synonym(s):

Coumarin, 5,6-Benzo-2-pyrone

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C9H6O2
CAS Number:
91-64-5
Molecular Weight:
146.14
MDL number:
MFCD00006850
UNSPSC Code:
12352115
EC Index Number:
202-086-7

vapor pressure

1.3 hPa ( 106 °C)

Quality Level

200

Assay

≥99.0% (HPLC)

form

crystals

potency

293 mg/kg LD50, oral (Rat)

mp

68-71 °C

transition temp

flash point 162 °C

density

0.935 g/cm3

storage temp.

2-30°C

InChI

1S/C9H6O2/c10-9-6-5-7-3-1-2-4-8(7)11-9/h1-6H

InChI key

ZYGHJZDHTFUPRJ-UHFFFAOYSA-N

Analysis Note

Assay (HPLC, area%): ≥ 99.0 % (a/a)
Melting range (lower value): ≥ 68 °C
Melting range (upper value): ≤ 71 °C
Identity (IR): passes test

Pictograms

Skull and crossbones
GHS06

Signal Word

Danger

Hazard Statements

H301 + H311 - H317

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Skin Sens. 1

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

Flash Point(F)

323.6 °F - closed cup

Flash Point(C)

162 °C - closed cup

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service