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3,4-Dihydro-2H-pyran CAS#110-87-2

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Chemical Name：3,4-Dihydro-2H-pyran

CAS No.:110-87-2

Molecular Formula：C5H8O

Molecular weight:84.12

Sample: Available

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Product Details

Products Description of 3,4-Dihydro-2H-pyran CAS#110-87-2

3,4-Dihydro-2H-pyran, referred to as DHP, is an organic intermediate often used as a protective group. 3,4-Dihydro-2H-pyran can be prepared from tetrahydrofurfuryl alcohol.

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3,4-Dihydro-2H-pyran Chemical Properties

Melting point	-70 °C (lit.)
Boiling point	86 °C (lit.)
density	0.922 g/mL at 25 °C (lit.)
vapor density	2.9 (vs air)
vapor pressure	77.8 hPa (20 °C)
refractive index	n20/D 1.440(lit.)
Fp	4 °F
storage temp.	Store below +30°C.
solubility	7.7g/l
form	Liquid
color	Clear colorless to yellow
PH	7 (5g/l, H2O, 20℃)
explosive limit	1.1-13.8%(V)
Water Solubility	20 g/L (20 ºC)
BRN	103493
Stability:	Volatile
InChIKey	BUDQDWGNQVEFAC-UHFFFAOYSA-N
LogP	0.690
CAS DataBase Reference	110-87-2(CAS DataBase Reference)
NIST Chemistry Reference	2H-Pyran, 3,4-dihydro-(110-87-2)
EPA Substance Registry System	2H-Pyran, 3,4-dihydro- (110-87-2)

Safety Information

Hazard Codes	F,Xi
Risk Statements	11-36/37/38-36/38-19
Safety Statements	16-26-36-37/39-33-7/9
RIDADR	UN 2376 3/PG 2
WGK Germany	3
RTECS	UP7700000
Autoignition Temperature	240 °C
Hazard Note	Highly Flammable/Irritant
TSCA	Yes
HazardClass	3
PackingGroup	II
HS Code	29329995
Toxicity	LD50 orally in Rabbit: > 4000 mg/kg

Product Application of 3,4-Dihydro-2H-pyran CAS#110-87-2

Pharmaceutical intermediate, used in 1,5-dichloropentane, which can be used to synthesize heptanediamine, pimelic acid, and used in the production of synthetic fibers, etc. Alcohol group protecting reagent; widely used as hydroxyl protection reagent, widely used as OH protecting reagent;

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