o-Phthalic anhydride - ACS , CAS No.85-44-9

CAS: 85-44-9 Cat. No.: P116468 Summenformel: C8H4O3 Molekulargewicht: 148.12 Beilstein Registry Number: 118515 EG-Nummer: 201-607-5
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GRADE & PURITY ACS ? ACS grade — meets American Chemical Society specifications, the analytical benchmark in the US. Use for analytical and QC work needing ACS-defined purity.
Synonyms
CHEBI:36605 | PHTHALIC ANHYDRIDE | Wiltrol P | 1,3-DIOXOPHTHALANE | Anidride ftalica | pthalic anhydride | RCRA waste number U190 | STL194302 | HSDB 4012 | Phthalic anhydride treated gelatin | Phthalic anhydride, ACS reagent, >=99% | Phthalic anhydride, a
Storage
Room temperature,Argon charged
Shipped In
FedEx DG Service
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Size
Deutschland (EU)
USA*
Price
Qty
100g
P116468-100g
Auf Bestellung · 8–12 Wochen
17,27€
500g
P116468-500g
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5 Auf Lager
58,92€
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Why this grade

ACS ACS for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature,Argon charged Ships FedEx DG Service Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 13 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyme
CHEBI:36605 | PHTHALIC ANHYDRIDE | Wiltrol P | 1,3-DIOXOPHTHALANE | Anidride ftalica | pthalic anhydride | RCRA waste number U190 | STL194302 | HSDB 4012 | Phthalic anhydride treated gelatin | Phthalic anhydride, ACS reagent, >=99% | Phthalic anhydride, a
Spezifikationen & Reinheit
ACS
Storage
Room temperature,Argon charged
Verschickt in
FedEx DG Service
Note
ACS
Namen und Kennungen
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/504751177
Kanonisches Lächeln
C1=CC=C2C(=C1)C(=O)OC2=O
IUPAC Name
2-benzofuran-1,3-dione
InChIKey
LGRFSURHDFAFJT-UHFFFAOYSA-N
INCHI
1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H
Isomere SMILES
C1=CC=C2C(=C1)C(=O)OC2=O
WGK Deutschland
1
RTECS
TI3150000
UN-Nummer
2214
Verpackungsgruppe
III
Molekulargewicht
148.12
Beilstein
118515
Reaxy-Rn
118515
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=118515&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
KlasseBenzofurans
SubclassBenzofuranones
Intermediate Tree Nodes Not available
Direct ParentPhthalic anhydrides
Alternative Parents Isobenzofuranones  Dicarboxylic acids and derivatives  Benzenoids  Carboxylic acid anhydrides  Oxacyclic compounds  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Phthalic anhydride - Phthalic_anhydride - Isobenzofuranone - Isocoumaran - Benzenoid - Dicarboxylic acid or derivatives - Carboxylic acid anhydride - Oxacycle - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Aromatic heteropolycyclic compound
BeschreibungThis compound belongs to the class of organic compounds known as phthalic anhydrides. These are compounds containing a phthalic anhydride moiety (or a derivative thereof), which consists of a benzene fused to a furan-1,3-dione.
External Descriptors 2-benzofurans - cyclic dicarboxylic anhydride
3D-Struktur
Interaktives chemisches Strukturmodell





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Wirkungsmechanismen
Zertifikate (CoA, COO, BSE/TSE und Analyse-Diagramm)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

7 results found

Lot NumberCertificate TypeDatumArtikel
E2607041Certificate of AnalysisMay 18, 2026 P116468
I2525055Certificate of AnalysisOct 15, 2025 P116468
L2116446Certificate of AnalysisSep 17, 2025 P116468
L2116447Certificate of AnalysisSep 10, 2025 P116468
K2109651Certificate of AnalysisAug 06, 2025 P116468
K2109652Certificate of AnalysisAug 06, 2025 P116468
H2317071Certificate of AnalysisAug 19, 2021 P116468
Chemische und physikalische Eigenschaften
LöslichkeitSoluble in water, carbon disulfide, ethanol, acetone and benzene. Slightly soluble in ethyl ether.
EmpfindlichkeitMoisture sensitive.
Flammpunkt (°F)305.6 °F
Flammpunkt (°C)152 °C
Siedepunkt (°C)295°C
Schmelzpunkt (°C)130.8°C
Molekulargewicht148.110 g/mol
XLogP31.300
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count3
Rotatable Bond Count0
Exact Mass148.016 Da
Monoisotopic Mass148.016 Da
Topological Polar Surface Area43.400 Ų
Heavy Atom Count11
Formal Charge0
Complexity187.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
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Citations of This Product
Lösungsrechner
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