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Key Documents

Safety Information

8.18769

Sigma-Aldrich

Cyclopentane

for synthesis

Synonym(s):

Cyclopentane

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About This Item

Empirical Formula (Hill Notation):
C5H10
CAS Number:
287-92-3
Molecular Weight:
70.13
MDL number:
MFCD00001356
UNSPSC Code:
12352001
EC Index Number:
206-016-6
NACRES:
NA.22

vapor pressure

346 hPa ( 20 °C)

Quality Level

200

Assay

≥98% (GC)

form

liquid

autoignition temp.

380 °C

potency

11400 mg/kg LD50, oral (Rat)

expl. lim.

1.5-8.7 % (v/v)

bp

49 °C

mp

-93.3 °C

transition temp

flash point -42 °C

density

0.75 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C5H10/c1-2-4-5-3-1/h1-5H2

InChI key

RGSFGYAAUTVSQA-UHFFFAOYSA-N

Application

  • Di-Isatropolone C, a Spontaneous Isatropolone C Dimer Derivative with Autophagy Activity: Reports on a novel cyclopentane ring formation in the study of autophagy, highlighting synthetic potential in pharmacology (Fu et al., 2024).
  • Dearomative (3+ 2) Cycloaddition of Indoles for the Stereoselective Assembly of Fully Functionalized Cyclopentanoids: Showcases the use of cyclopentane in creating complex cyclopentanoids for advanced organic synthesis (Qatran Al-Khdhairawi et al., 2024).

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.740 - 0.745
Identity (IR): passes test

Signal Word

Danger

Hazard Statements

H225 - H304 - H336 - H412

Hazard Classifications

Aquatic Chronic 3 - Asp. Tox. 1 - Flam. Liq. 2 - STOT SE 3

Target Organs

Central nervous system

Supplementary Hazards

EUH066

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

-4.0 °F - closed cup

Flash Point(C)

-20 °C - closed cup

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Flammable liquids
Type 1 petroleums
Hazardous rank II
Water insoluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

Certificates of Analysis (COA)

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