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1,2,3,4,5-Pentamethylcyclopentadiene

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Name

1,2,3,4,5-Pentamethylcyclopentadiene

EINECS 223-743-4
CAS No. 4045-44-7 Density 0.814 g/cm3
Solubility Melting Point
Formula C10H16 Boiling Point 170.2 °C at 760 mmHg
Molecular Weight 136.24 Flash Point 44.4 °C
Transport Information UN 3295 3/PG 3 Appearance clear colorless to yellowish liquid
Safety 16 Risk Codes 10
Molecular Structure Molecular Structure of 4045-44-7 (1,3-Cyclopentadiene,1,2,3,4,5-pentamethyl-) Hazard Symbols
Synonyms

Cyclopentadiene,1,2,3,4,5-pentamethyl- (6CI,7CI);1,2,3,4,5-Pentamethyl-1,3-cyclopentadiene;1,2,3,4,5-Pentamethylcyclopentadiene;NSC 222823;

 

1,2,3,4,5-Pentamethylcyclopentadiene Chemical Properties

IUPAC Name: 1,2,3,4,5-Pentamethylcyclopenta-1,3-diene
Systematic of 1,2,3,4,5-Pentamethylcyclopentadiene (CAS NO.4045-44-7): EINECS 223-743-4
CAS NO: 4045-44-7
Molecular Formula of 1,2,3,4,5-Pentamethylcyclopentadiene (CAS NO.4045-44-7): C10H16
Molecular Weight: 136.234
Molecular Structure:

Melting Point: 236 °C
ProductCategories: Alkenes ; Cyclic ; Organic Building Blocks 
Index of Refraction: 1.459
Molar Refractivity: 45.79 cm3
Molar Volume: 167.2 cm3
Surface Tension: 21.2 dyne/cm
Density of 1,2,3,4,5-Pentamethylcyclopentadiene (CAS NO.4045-44-7): 0.814 g/cm3
Flash Point: 44.4 °C
Enthalpy of Vaporization: 38.99 kJ/mol
Boiling Point: 170.2 °C at 760 mmHg
Vapour Pressure: 1.97 mmHg at 25°C

1,2,3,4,5-Pentamethylcyclopentadiene Uses

1,2,3,4,5-Pentamethylcyclopentadiene is used as an in situ growth modifier chemical for the chemical vapour deposition of IRON from IRON pentacarbonyl.

1,2,3,4,5-Pentamethylcyclopentadiene Toxicity Data With Reference

1、RTECS#: CAS# 4045-44-7: None listed 
2、LD50/LC50: RTECS: Not available. 
3、Carcinogenicity: 1,2,3,4,5-Pentamethylcyclopentadiene - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65. 
4、Other: The toxicological properties have not been fully investigated. 
 

1,2,3,4,5-Pentamethylcyclopentadiene Safety Profile

Risk Statements: 10 
R10: Flammable.
Safety Statements: 16 
S16: Keep away from sources of ignition.
RIDADR: UN 3295 3/PG 3
WGK Germany: 3
F: 9-23
HazardClass: 3
PackingGroup: III
HS Code: 29021990

1,2,3,4,5-Pentamethylcyclopentadiene Specification

Handling and Storage of 1,2,3,4,5-Pentamethylcyclopentadiene
Handling: Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. 
Storage: Keep away from sources of ignition. Store in a cool, dry place. Do not store in direct SUNLIGHT. Store in a tightly closed container. Flammables-area.

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