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delta-Valerolactone

delta-Valerolactone Structure
CAS No.
542-28-9
Chemical Name:
delta-Valerolactone
Synonyms
TETRAHYDRO-2H-PYRAN-2-ONE;δ-Valerolactone;tetrahydro-pyran-2-one;Oxan-2-one;D-VALEROLACTONE;5-Valerolactone;4-PENTANOLIDE;G-VALEROLACTONE;Tetrahydro-2-pyranone;TETRAHYDRO-2H-2-PYRANONE
CBNumber:
CB9853788
Molecular Formula:
C5H8O2
Molecular Weight:
100.12
MOL File:
542-28-9.mol
Modify Date:
2024/5/24 18:18:52

delta-Valerolactone Properties

Melting point -13 °C
Boiling point 230 °C
Density 1.105 g/mL at 20 °C
vapor density 3.45 (vs air)
vapor pressure 8.8Pa at 20℃
refractive index n20/D 1.457(lit.)
Flash point 212 °F
storage temp. -20°C
solubility Chloroform, Ethyl Acetate, Methanol
form Liquid
color Clear colorless to pale yellow
Water Solubility miscible
BRN 106436
Stability Moisture Sensitive
LogP 0 at 23℃
CAS DataBase Reference 542-28-9(CAS DataBase Reference)
NIST Chemistry Reference 2H-Pyran-2-one, tetrahydro-(542-28-9)
EPA Substance Registry System 2H-Pyran-2-one, tetrahydro- (542-28-9)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS05
Signal word  Danger
Hazard statements  H318
Precautionary statements  P280-P305+P351+P338+P310
Hazard Codes  Xi
Risk Statements  41
Safety Statements  26-39
WGK Germany  3
RTECS  LU3580000
Hazard Note  Irritant/Keep Cold
TSCA  Yes
HS Code  29322090
NFPA 704
1
2 0

delta-Valerolactone price More Price(11)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) 389579 δ-Valerolactone technical grade 542-28-9 25ML ₹2619.65 2022-06-14 Buy
Sigma-Aldrich(India) 389579 δ-Valerolactone technical grade 542-28-9 100ML ₹7144.5 2022-06-14 Buy
ALFA India ALF-L04794-36 delta-Valerolactone, 98%, may contain polymer 542-28-9 500g ₹22028 2022-05-26 Buy
ALFA India ALF-L04794-22 delta-Valerolactone, 98%, may contain polymer 542-28-9 100g ₹7999 2022-05-26 Buy
TCI Chemicals (India) V0039 δ-Valerolactone min. 98.0 % 542-28-9 25G ₹3900 2022-05-26 Buy
Product number Packaging Price Buy
389579 25ML ₹2619.65 Buy
389579 100ML ₹7144.5 Buy
ALF-L04794-36 500g ₹22028 Buy
ALF-L04794-22 100g ₹7999 Buy
V0039 25G ₹3900 Buy

delta-Valerolactone Chemical Properties,Uses,Production

Chemical Properties

clear colorless to pale yellow liquid

Uses

δ-Valerolactone is a compound commonly used to synthesize copolyesters by means of lipase-catalyzed ring opening polymerization.

Definition

ChEBI: The simplest member of the class of delta-lactone that is tetrahydro-2H-pyran substituted by an oxo group at position 2.

Purification Methods

Purify the -lactone by repeated fractional distillation. IR: max 1750 (in CS2), 1732 (in CHCl3),1748 (in CCl4) and 1733 (in MeOH) cm-1 [Huisgen & Ott Tetrahedron 6 253 1959, Linstead & Rydon J Chem Soc 580 1933, Jones et al. Can J Chem 37 2007 1959]. [Beilstein 17 H 235, 17 II 287, 17 III/IV 4169,17/9 V 17.]

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