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Homophthalic anhydride

Homophthalic anhydride structure

CAS No:
703-59-3
Formula:
C9H6O3
Chemical Name:
Homophthalic anhydride
Synonyms:
1H-2-Benzopyran-1,3(4H)-dione;o-Toluic acid,α-carboxy-,cyclic anhydride;1,3-Isochromandione;Benzeneacetic acid,2-carboxy-,cyclic anhydride;Homophthalic acid anhydride;Homophthalic anhydride;NSC 2825;NSC 401693;1H-Isochromene-1,3(4H)-dione;Homophtalic anhydride;3,4-Dihydro-1H-2-benzopyran-1,3-dione
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Pharmaceutical Intermediates > Bulk Drug Intermediates

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Description

slightly yellow to beige or light green powder

Homophthalic anhydride Basic Attributes

Molecular Weight：

162.142

Exact Mass：

162.14

EC Number：

211-873-4

UNII：

DZ8M2RM8MF

NSC Number：

401693|2825

DSSTox ID：

DTXSID00220569

HScode：

2932999099

Characteristics

PSA：

43.37000

XLogP3：

0.41

Appearance：

beige solid.

Density：

1.3±0.1 g/cm3

Melting Point：

320 °C

Boiling Point：

100-134 °C @ Press: 0.25 Torr

Flash Point：

159.0±23.1 °C

Refractive Index：

1.585

Water Solubility：

Decomposes in water.

Storage Conditions：

Refrigerator (+4ºC)

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

R36/37/38

safety instructions：

S26-S36

Marks：

Xi:Irritant;

Precautionary statement(s)：

P261-P305 + P351 + P338

Hazard Statements：

H315-H319-H335

GHS Classification：

|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 46 companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

MeSH Entry Terms：

homophthalic acid anhydride

Computed Properties

Molecular Weight:162.14
XLogP3:0.7
Hydrogen Bond Acceptor Count:3
Exact Mass:162.031694049
Monoisotopic Mass:162.031694049
Topological Polar Surface Area:43.4
Heavy Atom Count:12
Complexity:222
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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HOMOPHTHALIC ANHYDRIDE

CAS No.: 703-59-3

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