Product Name

  • Name

    METHYL HYDROGEN PHTHALATE

  • EINECS 224-476-6
  • CAS No. 4376-18-5
  • Article Data73
  • CAS DataBase
  • Density 1.288 g/cm3
  • Solubility Insoluble in water.
  • Melting Point 82-84 °C(lit.)
  • Formula C9H8O4
  • Boiling Point 328.9 °C at 760 mmHg
  • Molecular Weight 180.16
  • Flash Point 134.7 °C
  • Transport Information
  • Appearance white to off-white crystalline powder
  • Safety 26-36
  • Risk Codes 36/37/38
  • Molecular Structure Molecular Structure of 4376-18-5 (METHYL HYDROGEN PHTHALATE)
  • Hazard Symbols IrritantXi
  • Synonyms 1,2-Benzenedicarboxylicacid, monomethyl ester (9CI);Phthalic acid, methyl ester (6CI,7CI);Phthalicacid, monomethyl ester (8CI);2-(1-Methoxycarbonyl)benzoic acid;2-(Methoxycarbonyl)benzoic acid;D 3;D 3 (ester);Methyl 2-carboxybenzoate;Methyl hydrogen phthalate;Methyl phthalate;Monomethyl phthalate;NSC 8281;o-(Methoxycarbonyl)benzoic acid;
  • PSA 63.60000
  • LogP 1.17140

1,2-Benzenedicarboxylicacid, 1-methyl ester Specification

This chemical is called 1,2-Benzenedicarboxylicacid, 1-methyl ester, and it's also named as Methyl hydrogen phthalate. With the molecular formula of C9H8O4, its molecular weight is 180.1574. The CAS registry number of this chemical is 4376-18-5. Additionally, its product categories are Silicon Compounds; Esters; Phenyls & Phenyl-Het. However, this chemical should be stored in the dry and ventilated place.

Other characteristics of the 1,2-Benzenedicarboxylicacid, 1-methyl ester can be summarised as followings: (1)ACD/LogP: 1.13; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -1.01; (4)ACD/LogD (pH 7.4): -1.97; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 4; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 52.6 Å2; (13)Index of Refraction: 1.556; (14)Molar Refractivity: 44.95 cm3; (15)Molar Volume: 139.8 cm3; (16)Polarizability: 17.82×10-24cm3; (17)Surface Tension: 51.2 dyne/cm; (18)Density: 1.288 g/cm3; (19)Flash Point: 134.7 °C; (20)Enthalpy of Vaporization: 60.31 kJ/mol; (21)Boiling Point: 328.9 °C at 760 mmHg; (22)Vapour Pressure: 7.39E-05 mmHg at 25°C.

Production method of this chemical: The 1,2-Benzenedicarboxylicacid, 1-methyl ester could be obtained by the reactants of phthalic acid anhydride and methanol. This reaction needs the reagent of KCN. In addition, this reaction should be taken for 2 hours with the heating.

The 1,2-Benzenedicarboxylicacid, 1-methyl ester could be obtained by the reactants of phthalic acid anhydride and methanol

When you are using this chemical, please be cautious about it as the following: This chemical is irritating to eyes, respiratory system and skin. You should wear suitable protective clothing if you use it. In case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure: 
1.SMILES: O=C(OC)c1ccccc1C(=O)O
2.InChI: InChI=1/C9H8O4/c1-13-9(12)7-5-3-2-4-6(7)8(10)11/h2-5H,1H3,(H,10,11)
3.InChIKey: FNJSWIPFHMKRAT-UHFFFAOYAZ

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