Appearance: Colorless liquid. The boiling point is 189 °C, the relative density is 1.073 (25/4 °C), the refractive index is 1.4494, and the flash point is 76 °C. Soluble in organic solvents, insoluble in water. Melting point -52 °c Boiling Point: 189 °C

Appearance: Yellow needle-like crystals. Melting point 54-56 °c.

Melting Point: 55-58 °C(lit.)

Boiling Point: 83-84 °C (0.7501 mmHg)

Density 1.13

Vapor pressure 0.56Pa at 25°C

refractive index1.4500 (estimate)

Flash point > 230 °F

Storage conditions: 2-8 °C

Solubility: Phthalendehyde at 20°C solubility is 3g/100mL; Soluble in diisopropyl ether, 5g/100mL deionized water, 20g/100mL chloroform or 20g/100mL acetone.

Form powder

Color: yellow

pH 7 (53g/l, H2O, 20°C)

Water solubility is soluble in water

Sensitivity Air Sensitive

Merck7368

Detection method GC

BRN878317

ACGIH: SL .025 mg/100 cm2; Ceiling 0.1 ppb (Skin)

Stable and stable. Air sensitive. It is incompatible with strong oxidants and strong alkalis.

InChIKeyZWLUXSQADUDCSB-UHFFFAOYSA-N

LogP0.99 at 30℃

CAS DataBase Reference 643-79-8

NIST Chemical Substance Information O-phthalaldehyde(643-79-8)

Storage Precautions: Light Sensitive; Humidity sensitive; Nitrogen protection

EPA Chemical Substance Information 1,2-Benzenedicarboxaldehyde (643-79-8)

Purpose 1

Mainly used in medicine, dyes, etc

Purpose 2

It is used for medical testing

Purpose 3

This product is a pharmaceutical intermediate, the latest high-efficiency and safe antibacterial disinfectant for external use, as a disinfection and sterilization of endoscopic surgical instruments in hospitals, and can be used to synthesize a new antiplatelet aggregation drug indolebofen, which is also an analytical reagent in the field of chemistry.

Purpose four

1. Analytical reagent in the field of chemistry: as an amine alkaloid reagent, it is used for the determination of primary amines and peptide bond decomposition by fluorescence. 2. Organic synthesis: it is also a pharmaceutical intermediate 3. Fluorescent reagent, which is used for pre-column HPLC separation of amino acid derivatives and flow cytometry to measure the thiol group of proteins.