| Identification | More | [Name]
Himic anhydride | [CAS]
826-62-0 | [Synonyms]
3,6-ENDOMETHYLENE-(1,2,3,6)-TETRAHYDROCIS-PHTHALIC ANHYDRIDE
3,6-ENDOMETHYLENE-1,2,3,6-TETRAHYDROPHTHALIC ANHYDRIDE
3A,4,7,7A-TETRAHYDRO-4,7-METHANOISOBENZOFURAN-1,3-DIONE
5-NORBORNENE-2,3-DICARBONIC ANHYDRIDE
5-NORBORNENE-2,3-DICARBOXYLIC ANHYDRIDE
BICYCLO[2.2.1]-5-HEPTENE-2,3-DICARBOXYLIC ANHYDRIDE
BICYCLO[2.2.1]HEPT-5-ENE-2,3-DICARBOXYLIC ANHYDRIDE
CARBIC ANHYDRIDE
CIS-3,6-ENDO-METHYLENE-TETRAHYDROPHTHALIC ANHYDRIDE
CIS-5-NORBORNENE-ENDO-2,3-DICARBOXYLIC ANHYDRIDE
ENDO-CIS-5-NORBORNENE-2,3-DICARBOXYLIC ANHYDRIDE
ENDO-CIS-BICYCLO [2.2.1]-5-HEPTENE-2,3-DICARBOXYLIC ANHYDRIDE
ENDO-CIS-HIMIC ANHYDRIDE
HIMIC ANHYDRIDE
NADIC ANHYDRIDE
3,6’-Endomethylene-1,2,3,6-tet
3-dione,3a,4,7,7a-tetrahydro-7-methanoisobenzofuran-1
7-Methanoisobenzofuran-1,3-dione,3a,4,7,7a-tetrahydro-4
anhydridkyseliny3,6-endomethylen-delta(sup4)-tetrahydroftalove
Nadic anhydrous | [EINECS(EC#)]
204-957-7 | [Molecular Formula]
C9H8O3 | [MDL Number]
MFCD00151106 | [Molecular Weight]
164.16 | [MOL File]
826-62-0.mol |
| Chemical Properties | Back Directory | [Melting point ]
165-167 °C(lit.)
| [Boiling point ]
251.61°C (rough estimate) | [density ]
1.2132 (rough estimate) | [refractive index ]
1.5260 (estimate) | [storage temp. ]
Inert atmosphere,Room Temperature | [solubility ]
diethyl ether: soluble0.1g/10 mL, clear, colorless | [form ]
powder to crystal | [color ]
White to Almost white | [Specific Gravity]
1.250 (20/4℃) | [Merck ]
14,1796 | [BRN ]
150228 | [InChI]
InChI=1S/C9H8O3/c10-8-6-4-1-2-5(3-4)7(6)9(11)12-8/h1-2,4-7H,3H2 | [InChIKey]
KNDQHSIWLOJIGP-UHFFFAOYSA-N | [SMILES]
C1(=O)C2C(C3CC2C=C3)C(=O)O1 | [LogP]
-0.040 (est) | [CAS DataBase Reference]
826-62-0(CAS DataBase Reference) | [EPA Substance Registry System]
826-62-0(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R41:Risk of serious damage to eyes.
R42/43:May cause sensitization by inhalation and skin contact . | [Safety Statements ]
S22:Do not breathe dust .
S24:Avoid contact with skin .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection . | [RIDADR ]
UN 1325 | [WGK Germany ]
3
| [RTECS ]
DT5600000
| [F ]
21 | [HS Code ]
38220090 | [Toxicity]
skn-rbt 500 mg/24H MLD 28ZPAK -,140,72 |
| Hazard Information | Back Directory | [Description]
The substance 5-norbornene-2,3-dicarboxylic anhydride has a purity of approximately 99.5 % and
consists of two isomers, cis-5-norbrene-endo-2,3-dicarboxylic anhydride (99.2 %) and cis-5-norbreneexo-2,3-dicarboxylic anhydride (0.3 %). It has an estimated log Po/w = 2.3. Due to its chemical nature
as an anhydride it readily hydrolyses into the free diacid, norbornene-2,3-dicarboxylic acid. Therefore,
migration into aqueous foodstuffs will also lead to the presence of the two isomeric diacids. Melting
point of the substance is 163-165 °C. | [Chemical Properties]
white solid | [Uses]
5-Norbornene-2,3-dicarboxylic anhydride, as a copolymer monomer in polyester can coatings up to 18.3 % w/w in the final dry coating, does not pose a safety concern to the consumer under sterilised conditions and prolonged contact with all foodstuffs (except beverages). | [Reactions]
Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride reacts with methyl aminomethyllambertianate to give amide of bicyclo[2.2.1]heptan-1,2-dicarbocylic acid with a labdanoid substituent. | [General Description]
Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride reacts with methyl aminomethyllambertianate to give amide of bicyclo[2.2.1]heptan-1,2-dicarbocylic acid with a labdanoid substituent. | [Safety Profile]
Mild skin and severe eye irritant.When heated to decomposition it emits acrid smoke andirritating fumes. | [Toxicity evaluation]
In a cytogenetic test in vitro, 5-norbornene-2,3-dicarboxylic anhydride was clastogenic both in presence and absence of an exogenous metabolic activation system. Gene mutation assays in bacteria and cultured mammalian cells provided negative results. When administered to rats by the oral route at the maximum tolerated dose, 5-norbornene-2,3-dicarboxylic anhydride was not clastogenic/aneugenic in bone marrow, and did not induce DNA damage in liver and at the site of first contact (stomach) in a
combined micronucleus and comet assay. It is concluded that the clastogenic activity of 5-norbornene2,3-dicarboxylic anhydride observed in vitro is not expressed in vivo, and that 5-norbornene-2,3-
dicarboxylic anhydride does not raise concern for genotoxicity. |
|
|