Phthalaldehyde 99% CAS NO 643-79-8

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Min. Order: 1 Kilogram
Delivery Time: 3 Days

Basic Info

Model No.: CAS 643-79-8

Additional Info

Packaging: 25 KG Drum

Productivity: 10000

Brand: chenyi

Transportation: Ocean,Land,Air

Place of Origin: CHINA

Supply Ability: 10

Certificate: ISO 9001, GMP


Product Description

Phthalaldehyde 99% CAS NO 643-79-8
o-Phthalaldehyde or ortho-phthalaldehyde (OPA) is the chemical compound with the formula C6H4(CHO)2. Often abbreviated OPA, the molecule is a dialdehyde, consisting of two formyl (CHO) groups attached to adjacent carbon centres on a benzene ring. This pale yellow solid is a building block in the synthesis of heterocyclic compounds and a reagent in the analysis of amino acids. OPA dissolves in water solution at pH < 11.5. Its solutions degrade upon UV illumination and exposure to air.

O-benzaldehyde two formaldehyde
Chinese alias: o-benzene two aldehyde; 1,2- benzene two aldehyde; o-o-phenyl two formaldehyde;
English Name: phthalaldehyde
English alias: 1,2-Benzenedicarboxaldehyde; o-Phthalaldehyde;
CAS: 643-79-8
Molecular formula: C8H6O2
Molecular weight: 134.13200
Precise quality: 134.03700
Physicochemical properties
Appearance and properties: yellowish crystalline powder
Density: 1.13
Melting point: 55-58 degrees C (lit.)
Boiling point: 83-84 degrees C (0.7501 mmHg)
Flash point: >230 degrees F
Refractive index: 1.622
Water solubility: soluble
Stability: Stable. Air sensitive. Incompatible with strong oxidizing agents strong bases.
Storage conditions: 2-8 C
security information
Signal word: danger
Hazard statement: H301; H314; H317; H400
Cautionary statement: P273; P280; P301 + P310; P305 + P351 + P338; P310
Customs Code: 2912299000
Dangerous goods transportation Code: UN2923 8/PG 2
WGK Germany:3
Danger category code: R25; R34; R43
Safety instructions: S26-S28-S36-S45-S36/37/39-S61
RTECS: TH6950000
Dangerous goods sign: T
It is mainly used in medicine, dyes and so on.

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