Propylparaben

Molecular Formula: C₁₀H₁₂O₃
Molecular Weight: 180.2 g/mol
EINECS: 202-307-7
Boiling Point: 133 °C
Melting point: 95-99 °C(lit.)
Water solubility: <0.1 g/100 mL at 12 °C
Sensitive: Moisture sensitive
Appearance: White crystalline powder
Index of Refraction: 1.531
Density: 1.134 g/cm³
Flash Point: 124.6 °C
Enthalpy of Vaporization: 55.53 kJ/mol
Boiling Point: 294.3 °C at 760 mmHg
Vapour Pressure: 0.00093 mmHg at 25 °C
Structure of Propylparaben (CAS NO.94-13-3):
                       
IUPAC Name: Propyl 4-hydroxybenzoate
Product Category of Propylparaben (CAS NO.94-13-3): Pharmaceutical Raw Materials;Aromatic Esters

 Propylparaben (CAS NO.94-13-3) is used as antiseptic,antimicrobial agent, and antioxidant, and is also used in pharmaceutical industry.

Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

Poison by intraperitoneal route. Moderately toxic by subcutaneous route. Mildly toxic by ingestion. An allergen. When heated to decomposition it emits acrid smoke and fumes.
Hazard Codes: Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.  
Safety Statements: 26-24/25-36
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 
24/25:  Avoid contact with skin and eyes 
36:  Wear suitable protective clothing  
WGK Germany: 1
RTECS: DH2800000
HS Code: 29182930

 Propylparaben , its cas register number is 94-13-3. It also can be called Propyl paraben ; Propyl p-hydroxybenzoate ; Propyl 4-hydroxybenzoate ; Propyl Butex ; Propyl Chemosept ; 4-Hydroxybenzoic acid propyl ester ; and p-Hydroxybenzoic acid propyl ester . It is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly, get medical aid. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product: Wash mouth out with water, and get medical aid immediately. Notes to physician: Treat supportively and symptomatically.
In addition, Propylparaben (CAS NO.94-13-3) is not compatible with strong oxidizing agents, and you must not take it with incompatible materials. And also prevent it to broken down into hazardous decomposition products: carbon monoxide, carbon dioxide.