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Key Documents

8.04784

Sigma-Aldrich

Isatoic anhydride

for synthesis

Synonym(s):

Isatoic anhydride, Anthranilic acid N-carboxylic acid anhydride, 1,4-Dihydro-2H-3,1-benzoxazin-2,4-dione, 2H-3,1-Benzoxazine-2,4-(1H)-dione

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About This Item

Empirical Formula (Hill Notation):
C8H5NO3
CAS Number:
118-48-9
Molecular Weight:
163.13
MDL number:
MFCD00006700
UNSPSC Code:
12352115
EC Index Number:
204-255-0
NACRES:
NA.22

Quality Level

200

assay

≥97.0% (acidimetric)

form

powder

autoignition temp.

>600 °C

potency

>6400 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rabbit)

bp

350 °C/1013 hPa

mp

230-232 °C

transition temp

flash point 308 °C

solubility

0.3 g/L

bulk density

600 kg/m3

storage temp.

2-30°C

InChI

1S/C8H5NO3/c10-7-5-3-1-2-4-6(5)9-8(11)12-7/h1-4H,(H,9,11)

InChI key

TXJUTRJFNRYTHH-UHFFFAOYSA-N

Analysis Note

Assay (acidimetric): ≥ 97.0 %
Identity (IR): passes test

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

586.4 °F - closed cup

flash_point_c

308 °C - closed cup

Certificates of Analysis (COA)

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