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2,5-Dimethoxybenzaldehyde

2,5-Dimethoxybenzaldehyde Structural Formula

Structural formula

Business number 025L
Molecular formula C9H10O3
Molecular weight 166.17
label

2,5-dimethoxybenzoin aldehyde,

2,5-Dimethoxy-benzaldehyde

Numbering system

CAS number:93-02-7

MDL number:MFCD00003314

EINECS number:202-211-5

RTECS number:CU5740500

BRN number:509301

PubChem number:24893408

Physical property data

1. Characteristics: light yellow crystalline powder


2. Density (g/mL,25/4℃): Undetermined


3 . Relative vapor density (g/mL,AIR=1): Undetermined


4. Melting point (ºC): 45-50


5. Boiling point (ºC,Normal pressure):146


6. Boiling point (ºC,5.2kPa): Undetermined


7. Refractive index: undetermined


8. Flashpoint (ºC): Undetermined


9. Specific optical rotation (º): Undetermined


10. Autoignition point or ignition temperature (ºC): Undetermined


11. Vapor pressure (kPa,25ºC): Undetermined


12. Saturated vapor pressure (kPa,60ºC): Undetermined


13. Heat of combustion (KJ/mol): Undetermined


14. Critical temperature (ºC): Undetermined


15. Critical pressure (KPa): Undetermined


16. Oil and water (octanol/Log value of partition coefficient (water): undetermined


17. Explosion limit (%, V/V): Undetermined


18. Lower explosion limit (%,V/V): Undetermined


19. Solubility: soluble in ethanol, ether and other organic solvents.

Toxicological data

None

Ecological data

None

Molecular structure data

1. Molar refractive index: 46.36


2. Molar Volume (m3/mol):149.1


3. isotonic specific volume (90.2K):365.6


4. Surface Tension (dyne/cm):36.1


5. Polarizability10-24cm3):18.37

Compute chemical data

1 , Reference value for hydrophobic parameter calculation (XlogP): 1.5


2 , Number of hydrogen bond donors: 0


3 , Number of hydrogen bond acceptors: 3


4 Number of rotatable chemical bonds: 3


5 , Number of tautomers:


6 Topological molecular polar surface area ( TPSA): 35.5


7 , Number of heavy atoms: 12


8 , Surface charge: 0


9 , Complexity: 147


10 , Isotope atomic number: 0


11, Determine the number of atomic stereocenters: 0


12 , Uncertain number of atomic stereocenters: 0


13 , Determine the number of stereocenters of chemical bonds: 0


14 , Uncertain number of chemical bond stereocenters: 0


15 , Number of covalent bond units: 1


Properties and stability

None

Storage method

This product should be sealed and stored away from light.

Synthesis method

Using the corresponding hydroxymethoxybenzaldehyde as raw material, it is prepared by methylation reaction with dimethyl sulfate in an alkali aqueous solution.

Purpose

Used as organic intermediates

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