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4-HYDROXYPHTHALIC ANHYDRIDE

CAS No.
27550-59-0
Chemical Name:
4-HYDROXYPHTHALIC ANHYDRIDE
Synonyms
5-hydroxyisobenzofuran-1,3-dione;Hydroxyisobenzofuran​4-Hydroxy-phthalicanhydrid;4-HYDROXYPHTHALIC ANHYDRIDE;5-hydroxy-2-benzofuran-1,3-dione;1,3-Isobenzofurandione,5-hydroxy-;5-Hydroxy-1,3-isobenzofurandione, 98+%;5-hydroxy-1,3-dihydro-2-benzofuran-1,3-dione
CBNumber:
CB5411627
Molecular Formula:
C8H4O4
Molecular Weight:
164.12
MDL Number:
MFCD00997252
MOL File:
27550-59-0.mol
MSDS File:
SDS
Last updated:2026-05-28 03:43:25
Product description Number Pack Size Price
5-Hydroxyisobenzofuran-1,3-dione 97% OR72403 1g $21
5-Hydroxyisobenzofuran-1,3-dione 97% OR72403 5g $39
5-Hydroxyisobenzofuran-1,3-dione 97% OR72403 25g $184
5-Hydroxyisobenzofuran-1,3-dione 97% OR72403 100g $734
5-Hydroxyisobenzofuran-1,3-dione 97% OR72403 1g $21
More product size

4-HYDROXYPHTHALIC ANHYDRIDE Properties

Melting point 171-173 °C(Solv: acetic acid (64-19-7))
Boiling point 407.8±28.0 °C(Predicted)
Density 1.624±0.06 g/cm3(Predicted)
storage temp. under inert gas (nitrogen or Argon) at 2-8°C
pka 6.52±0.20(Predicted)
Appearance Off-white to light brown Solid
InChI InChI=1S/C8H4O4/c9-4-1-2-5-6(3-4)8(11)12-7(5)10/h1-3,9H
InChIKey PXHIYFMTRHEUHZ-UHFFFAOYSA-N
SMILES C1(=O)C2=C(C=C(O)C=C2)C(=O)O1

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H319-H315-H335
Precautionary statements  P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362

4-HYDROXYPHTHALIC ANHYDRIDE price More Price(74)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Apolloscientific OR72403 5-Hydroxyisobenzofuran-1,3-dione 97% 27550-59-0 1g $21 2026-06-04 Buy
Apolloscientific OR72403 5-Hydroxyisobenzofuran-1,3-dione 97% 27550-59-0 5g $39 2026-06-04 Buy
Apolloscientific OR72403 5-Hydroxyisobenzofuran-1,3-dione 97% 27550-59-0 25g $184 2026-06-04 Buy
Apolloscientific OR72403 5-Hydroxyisobenzofuran-1,3-dione 97% 27550-59-0 100g $734 2026-06-04 Buy
Apolloscientific OR72403 5-Hydroxyisobenzofuran-1,3-dione 97% 27550-59-0 1g $21 2026-06-04 Buy
Product number Packaging Price Buy
OR72403 1g $21 Buy
OR72403 5g $39 Buy
OR72403 25g $184 Buy
OR72403 100g $734 Buy
OR72403 1g $21 Buy

4-HYDROXYPHTHALIC ANHYDRIDE Chemical Properties,Uses,Production

Uses

4-Hydroxyphthalic anhydride is a derivative of 3-hydroxyphthalic anhydride and can be used to modify proteins for in vitro biologics studies.

Synthesis

4-Hydroxyphthalic acid

610-35-5

4-HYDROXYPHTHALIC ANHYDRIDE

27550-59-0

The sublimation reaction was carried out at 220 °C and under vacuum conditions (~10 mbar) using 4-hydroxyphthalic acid (1 g, 5.49 mmol) as the raw material. Upon completion of the reaction, the resulting white solid 5-hydroxyisobenzofuran-1,3-dione (675 mg, 4.11 mmol, 74.9% yield, MS/ESI+ 164.9 [MH]+) was collected. The product is to be stored under vacuum and used directly in subsequent reaction steps.

References

[1] Bioorganic and Medicinal Chemistry Letters, 2005, vol. 15, # 20, p. 4427 - 4431
[2] Journal of Medicinal Chemistry, 2011, vol. 54, # 1, p. 342 - 353
[3] Patent: CN104910113, 2017, B. Location in patent: Page/Page column 0041; 0044-0046
[4] European Journal of Medicinal Chemistry, 1987, vol. 22, p. 229 - 238
[5] Patent: US2013/102576, 2013, A1. Location in patent: Paragraph 0607

5434-21-9
27550-59-0
Synthesis of 4-HYDROXYPHTHALIC ANHYDRIDE from 4-Aminophthalic acid
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View Lastest Price from 4-HYDROXYPHTHALIC ANHYDRIDE manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-HYDROXYPHTHALIC ANHYDRIDE pictures 2026-03-20 4-HYDROXYPHTHALIC ANHYDRIDE
27550-59-0
$10.00 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
4-HYDROXYPHTHALIC ANHYDRIDE pictures 2025-04-04 4-HYDROXYPHTHALIC ANHYDRIDE
27550-59-0
1KG 98% 1ton Henan Aochuang Chemical Co.,Ltd.
 4-HYDROXYPHTHALIC ANHYDRIDE pictures 2019-07-06 4-HYDROXYPHTHALIC ANHYDRIDE
27550-59-0
$8.00 1kg 99% 100MT Career Henan Chemical Co

4-HYDROXYPHTHALIC ANHYDRIDE Spectrum

4-HYDROXYPHTHALIC ANHYDRIDE 5-hydroxy-2-benzofuran-1,3-dione 5-hydroxy-1,3-dihydro-2-benzofuran-1,3-dione 4-Hydroxy-phthalicanhydrid 1,3-Isobenzofurandione,5-hydroxy- 5-Hydroxy-1,3-isobenzofurandione, 98+% Hydroxyisobenzofuran​ 5-hydroxyisobenzofuran-1,3-dione 27550-59-0 C8H4O4