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1,2,3,6-Tetrahydrophthalic anhydride

Name: 1,2,3,6-Tetrahydrophthalic anhydride
Brand: MM

for synthesis

Synonym(s):

1,2,3,6-Tetrahydrophthalic anhydride, 4-Cyclohexene-1,2-dicarboxylic anhydride

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About This Item

Empirical Formula (Hill Notation):

C₈H₈O₃

CAS Number:

85-43-8

Molecular Weight:

152.15

MDL number:

MFCD00065335

UNSPSC Code:

12352115

EC Index Number:

201-605-4

NACRES:

NA.22

Form:

flakes

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Properties

vapor pressure

0.00021 hPa ( 20 °C)

Quality Segment

200

form

flakes

autoignition temp.

400 °C

potency

5410 mg/kg LD₅₀, oral (Rat)

pH

2.1 (20 °C, 10 g/L in H₂O)

mp

101.4 °C

transition temp

flash point 156 °C

solubility

29.4 g/L

density

1.36 g/cm³ at 20 °C

storage temp.

2-30°C

SMILES string

O1C(=O)C2C(CC=CC2)C1=O

InChI

1S/C8H8O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-2,5-6H,3-4H2

InChI key

KMOUUZVZFBCRAM-UHFFFAOYSA-N

Description

Analysis Note

Assay (morpholine method): ≥ 97.0 %
Melting range (lower value): ≥ 99 °C
Melting range (upper value): ≤ 102 °C
Identity (IR): passes test

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This Item	800741	820370	T14001
Sigma-Aldrich 800742 1,2,3,6-Tetrahydrophthalic anhydride	Sigma-Aldrich 800741 Tetrachlorophthalic anhydride	Sigma-Aldrich 820370 1,2,3,6-Tetrahydrophthalimide	Sigma-Aldrich T14001 3,4,5,6-Tetrahydrophthalic anhydride
description for synthesis	description for synthesis	description for synthesis	description 95%
solubility 29.4 g/L	solubility -	solubility -	solubility -
Quality Level 200	Quality Level 200	Quality Level 200	Quality Level 100
mp 101.4 °C	mp 253-256 °C	mp 133-137 °C	mp 69-73 °C (lit.)
form flakes	form powder	form solid	form -
storage temp. 2-30°C	storage temp. 2-30°C	storage temp. 2-30°C	storage temp. -
density 1.36 g/cm³ at 20 °C	density -	density -	density -

pictograms

GHS08,GHS05

signalword

Danger

pcodes

P261 - P272 - P273 - P280 - P302 + P352 - P305 + P351 + P338

Hazard Classifications

Aquatic Chronic 3 - Eye Dam. 1 - Resp. Sens. 1 - Skin Sens. 1

wgk

WGK 1

flash_point_f

312.8 °F

flash_point_c

156 °C

hcodes

H317,H318,H334,H412

Storage Class

8A - Combustible corrosive hazardous materials

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