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Homophthalic anhydride_Molecular_structure_CAS_703-59-3)
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Homophthalic anhydride

Catalog No. 128589 Name Sigma Aldrich
CAS Number 703-59-3 Website http://www.sigmaaldrich.com
M. F. C9H6O3 Telephone 1-800-521-8956
M. W. 162.14214 Fax
Purity Email
Storage Chembase ID: 106850

SYNONYMS

Title
高酞酸酐
IUPAC name
3,4-dihydro-1H-2-benzopyran-1,3-dione
IUPAC Traditional name
4H-2-benzopyran-1,3-dione
Synonyms
邻苯二价酸酐
高邻苯二甲酸酐
1,3-Isochromandione
2-Carboxyphenylacetic anhydride

DATABASE IDS

CAS Number 703-59-3
EC Number 211-873-4
PubChem SID 24847869
Beilstein Number 5244
MDL Number MFCD00006894

PROPERTIES

Empirical Formula (Hill Notation) C9H6O3
Grade technical grade
Impurities 25% 3,4:8,9-dibenzooxacyclodecane-2,6,10-trione
Melting Point 140-142 °C(lit.)
GHS Pictograms GHS07
GHS Signal Word Warning
GHS Hazard statements H315-H319-H335
European Hazard Symbols Irritant Irritant (Xi)
MSDS Link Download
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves
GHS Precautionary statements P261-P305 + P351 + P338
Risk Statements 36/37/38
Safety Statements 26-36
Storage Temperature 2-8°C
German water hazard class 3

DETAILS

Description (English)
Packaging
5 g in glass bottle
Description (简体中文)
包装
5 g in glass bottle

REFERENCES