Syringaldehyde

The Molecular formula of 3,5-Dimethoxy-4-hydroxybenzaldehyde (CAS NO.134-96-3): C₉H₁₀O₄
The Molecular Weight of 3,5-Dimethoxy-4-hydroxybenzaldehyde (CAS NO.134-96-3): 182.17
Molecular Structure : 
EINECS: 205-167-5
Melting point: 110-113 °C(lit.)
Boiling Point: 322.1 °C at 760 mmHg
Water Solubility: very sparingly soluble
Sensitive: Air Sensitive
Merck: 14,9015
BRN: 784514
H bond acceptors: 4
H bond donors: 1
Freely Rotating Bonds: 4
Polar Surface Area: 44.76Ų
Flash Point: 130.1 °C
Index of Refraction: 1.567
Molar Refractivity: 48.24 cm³
Molar Volume: 147.5 cm³
Polarizability: 19.12*10 ^-24 cm³
Surface Tension: 44.3 dyne/cm
Density: 1.234 g/cm³
Enthalpy of Vaporization: 58.64 kJ/mol
Vapour Pressure: 0.000151 mmHg at 25°C
IUPAC Name: 4-hydroxy-3,5-dimethoxybenzaldehyde
InChI
InChI=1/C9H10O4/c1-12-7-3-6(5-10)4-8(13-2)9(7)11/h3-5,11H,1-2H3
Smiles
c1(c(c(cc(c1)C=O)OC)O)OC
Product Categories: Aromatic Aldehydes & Derivatives (substituted)

Reported in EPA TSCA Inventory.

Moderately toxic by intraperitoneal route. When heated to decomposition it emits acrid smoke and irritating fumes. See also aldehydes.
The Hazard Codes of 3,5-Dimethoxy-4-hydroxybenzaldehyde (CAS NO.134-96-3): Xn,Xi
The Risk Statements information of 3,5-Dimethoxy-4-hydroxybenzaldehyde (CAS NO.134-96-3):
22:  Harmful if swallowed 
36/37/38:  Irritating to eyes, respiratory system and skin 
The Safety Statements information of 3,5-Dimethoxy-4-hydroxybenzaldehyde (CAS NO.134-96-3):
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 
36:  Wear suitable protective clothing 
37/39:  Wear suitable gloves and eye/face protection 
WGK Germany: 3
RTECS: CU5760000
Hazard Note: Irritant
HS Code: 29124900

  3,5-Dimethoxy-4-hydroxybenzaldehyde , with CAS number of 134-96-3, can be called 2,6-Dimethoxy-4-formylphenol ; 4-Hydroxy-3,5-dimethoxybenzaldehyd ; 4-Hydroxy-3,5-dimethoxybenzaldehyde ; 4-Hydroxy-3,5-diméthoxybenzaldéhyde ; 4-Hydroxy-3,5-dimethoxybenzolcarbaldehyd ; benzaldehyde, 4-hydroxy-3,5-dimethoxy- . It is a light yellow-green to brown crystalline powder.