Methylhexahydrophthalic anhydride (HCID 3016472)

Überblick

Methylhexahydrophthalic anhydride is a cyclic dicarboxylic anhydride that is the cyclic anhydride of methylhexahydrophthalic acid. It has a role as an allergen and a curing agent. It is a cyclic dicarboxylic anhydride and a tetrahydrofurandione.

Namen und Bezeichner

Bevorzugter Name: Methylhexahydrophthalic anhydride
IUPAC: 7a-methyl-4,5,6,7-tetrahydro-3aH-2-benzofuran-1,3-dione
Lokaler Name: Hexahydro-1-methylphthalsureanhydrid
Englischer Name: hexahydro-1-methylphthalic anhydride
Summenformel: C9H12O3
Molmasse: 168.19

Namen und Synonyme

Methylhexahydrophthalic anhydride25550-51-048122-14-1MHHPAHexahydro-1-methylphthalic anhydrideHexahydro-3a-methyl-1,3-isobenzofurandioneEINECS 256-356-4Hexahydromethylphthalic anhydrideCHEBI:554613a-methylhexahydro-2-benzofuran-1,3-dioneEINECS 247-094-1hexahydromethyl-1,3-isobenzofurandione

Weitere Namen anzeigen

Hexahydro-3α-methyl-1,3-isobenzofurandione1,3-Isobenzofurandione, hexahydro-3a-methyl-Hexahydro-3a-methylphthalic anhdride, mixture of isomers3a,4,5,6,7,7a-Hexahydro-3a-methyl-1,3-isobenzofurandione

1,3-Isobenzofurandione, hexahydromethyl-methyl-1,2-cyclohexanedicarboxylic anhydrideDTXSID70964009EC 247-094-1RefChem:818620DTXSID1029330DTXCID208572101,3Isobenzofurandione, hexahydromethyl

Datenbank-Bezeichner

CAS: 25550-51-0、48122-14-1
PubChem CID: 3016472
DTXSID: DTXSID70964009
ChEBI: CHEBI:55461
EC Number: 247-094-1、256-356-4
Nikkaji: J319.971A

Eigenschaften

Berechnete Struktureigenschaften

XLogP: 1,5
Polarare Oberfläche (TPSA): 43,4 Å²
H-Brücken-Donoren: 0
H-Brücken-Akzeptoren: 3
Frei drehbare Bindungen: 0
Schwere Atome: 12
Formalladung: 0
Komplexität: 246

Experimentelle und physikochemische Eigenschaften

PolymersPlastics & Rubber -> Acid Anhydrides, Cyclic

Density · 2 Einträge

1.15 g/cm³

Relative density of the vapour/air-mixture at 20 °C (air = 1): 5.81

SolubilitySolubility in water at 20 °C: reaction

Flash Point145 °C

Boiling Point290 °C

Melting Point-29 °C

Physikochemische Eigenschaften

Siedepunkt: 289.9 · 289.9±9.0 °C(Predicted)
Dichte: 1.205 · 1.205±0.06 g/cm3(Predicted)
Löslichkeit: Chloroform (Slightly), DMSO (Slightly)
Aggregatzustand: Solid
Farbe: White to Off-White
Stabilität: Moisture sensitive

Sicherheit und Regulatorisches

GHS-Klassifizierung

GHS Classification · 6 Einträge

Danger

H317: May cause an allergic skin reaction [Warning Sensitization, Skin]

P233, P260, P261, P264+P265, P271, P272, P280, P284, P302+P352, P304+P340, P305+P354+P338, P317, P321, P333+P317, P342+P316, P362+P364, P403, and P501 (click each P-code to see the statement)

Danger

H317: May cause an allergic skin reaction [Warning Sensitization, Skin]

P233, P260, P261, P264+P265, P271, P272, P280, P284, P302+P352, P304+P340, P305+P354+P338, P317, P321, P333+P317, P342+P316, P362+P364, P403, and P501 (click each P-code to see the statement)

Gefahrenhinweise

Regulatory Information · 6 Einträge

Chemical: 1,3-Isobenzofurandione, hexahydromethyl-

Hazard Traits - Respiratory Toxicity

1,3-Isobenzofurandione, hexahydromethyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,3-Isobenzofurandione, hexahydromethyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 13-07-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/16115

Substance: Hexahydromethylphthalic anhydride

Fire HazardsCombustible. Gives off irritating or toxic fumes (or gases) in a fire.

Hazards Summary · 1 Eintrag

Slowly decomposed by water forming acids; A skin and severe eye irritant; May cause skin and respiratory sensitization; [ICSC] Cyclic acid anhydrides can cause irritation and sensitization by dermal, mucous membrane, and inhalation from occupational exposure; The most common allergic diseases reported are rhinoconjunctivitis and asthma, allergic contact dermatitis is rare; [Reference #1] Reacts slowly with water; May cause severe eye irritation, corneal injury, and burns; Prolonged skin contact may cause severe irritation and burns; May cause skin and respiratory sensitization; Chronic inhalation exposure may cause bronchitis and asthma; [Dixie Chemical MSDS] See ACID ANHYDRIDES. See Hexahydrophthalic anhydride.

EC ClassificationNote: C; Symbol: Xn; R: 41-42/43; S: (2)-22-24-26-37/39

Chemical DangersDecomposes slowly on contact with water. This produces acid. Reacts with acids, alcohols, bases and oxidants.

Hazard Classes and Categories · 6 Einträge

Skin Sens. 1 (100%)

Eye damage - category 1

Respiratory sensitization - Category 1A

Eye Dam. 1

Sicherheit und Schutzausrüstung

Fire FightingUse water spray, foam, powder, carbon dioxide.

First Aid Measures · 4 Einträge

Fresh air, rest. Refer for medical attention.

Remove contaminated clothes. Rinse and then wash skin with water and soap.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Rinse mouth. Refer for medical attention .

Safe StorageSeparated from food and feedstuffs. Dry.

Spillage DisposalPersonal protection: complete protective clothing including self-contained breathing apparatus. Collect leaking and spilled liquid in covered containers as far as possible.

Eye PreventionWear face shield or eye protection in combination with breathing protection.

Fire PreventionNO open flames.

Toxikologische Informationen

Adverse EffectsDermatotoxin - Skin burns.

Exposure RoutesThe substance can be absorbed into the body by inhalation and by ingestion.

Signs and Symptoms · 4 Einträge

Cough. Wheezing.

Redness.

Redness. Pain.

Abdominal pain. Diarrhoea.

Sicherheitsdaten

Alarmwort: Achtung
Gefahrenhinweise: Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code H317

Chemie und Industrie

Verwendung und Herstellung

Uses · 2 Einträge

Cyclic acid anhydrides: Used to make polyester and alkyd resins, plasticizers, and as epoxy resin hardeners; [Reference #1]

Plastic Composites Manufacturing [Category: Industry]

U.S. Production2023: 6,762,247 lb

Industry UsesIntermediate

General Manufacturing Information · 2 Einträge

All Other Basic Organic Chemical Manufacturing

1,3-Isobenzofurandione, hexahydromethyl-: ACTIVE

Anwendungen

VerwendenHexahydro-4-methylphthalic Anhydride, can be used in the mixture of other isomers nanofiber supported 3D interconnected BN nanosheets for epoxy nanocomposites with ultrahigh thermal management capability