Phthalic anhydride (CAS 85-44-9)

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Application:	An intermediate in chemical synthesis and plastics manufacturing
CAS Number:	85-44-9
Molecular Weight:	148.12
Molecular Formula:	C₈H₄O₃

Ordering Information

Product Name	Catalog #	Unit	Price
Phthalic anhydride	sc-203189	25 g	$25
Phthalic anhydride	sc-203189A	500 g	$30
Phthalic anhydride	sc-203189B	2.5 kg	$76

This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.

Description

Phthalic anhydride is a common laboratory chemical, Pthalic anhydride has been shown to be esterified with primary alcohols at room temperature. Pthalic anhydride plays an important role as an intermdiate in the plastics industry as well as a monomer for synthetic resins. It is also a precursor ot many dyes such as phthalein, phtalocyanine, rhodamine, fluorescein, and xanthene. Phthalic anhydride has also been used in the synthesis of primary amines.

Technical Information

Appearance:	white flakes
Solubility:	Water (6 g/L 20 ºC)
Storage:	Store at room temperature
Melting Point:	131-134 (lit.)
Boiling Point:	284 (lit.)
Density:	1.444 g/cm3
Refractive Index:	1.612

Safety and Reference Information

Transport:	UN 2214, Class 8, Packing group III
WGK Germany:	1
RTECS:	TI3150000
PubChem CID:	6811
Merck Index:	7372
MDL Number:	MFCD00005918
EC Number:	201-607-5
Beilstein Registry:	118515
SMILES:	C1=CC=C2C(=C1)C(=O)OC2=O

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

References

1. Siegel, E.F. 1947. J. Amer. Chem. Soc. 69: 1457-1461. 2. Bethesda, M. 1979. Public Health Service. 159

SDS

Datasheet/SDS