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CAS 32082-74-9 r-butyrolactone molecular structure lightbox
CAS RN: 32082-74-9

r-butyrolactone

Product Availability

Available package options are listed below.

1 package records0 with current stock
Batch No.PackageAvailabilityLead TimeInquiry
Batchno.20250909 25mg Out of stock 15 business days Inquiry
  • Product code: SSC-137566
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Historical Factory Record

Historical Supply Reference

This product has historical factory records. Recorded pack sizes and purity can be used as a supply reference, while project-specific availability is confirmed by inquiry.

  • Pack sizes on record: 1g
  • Available purity: ≥95%
  • Inventory rows with stock: 0
  • Bulk packaging: confirmed by inquiry
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Reference Pack Sizes

Reference pack sizes are shown below. Final availability, packaging and delivery schedule are confirmed by inquiry.

Recorded sizes, purity and stock details for CAS 32082-74-9
Pack Size Recorded Purity Available Qty Ship From Inquiry
1g ≥95% 0 Out of Stock Hong Kong Inquiry

32082-74-9 / 4-methyloxetan-2-one

Standard CAS: 32082-74-9 Multi CAS: Yes
Basic Information Physical Properties Computed Properties

Basic Information

CAS
32082-74-9
Multi CAS
Yes
Molecular Formula
C4H6O2
Molecular Weight
86.090000
Exact Mass
86.036779
InChI
InChI=1S/C4H6O2/c1-3-2-4(5)6-3/h3H,2H2,1H3/t3-/m1/s1
InChIKey
GSCLMSFRWBPUSK-GSVOUGTGSA-N

Physical Properties

Melting Point
-46.3 °F (NTP, 1992)
Boiling Point
160 to 163 °F at 29 mmHg (NTP, 1992)
Density
1.0555 at 68 °F (NTP, 1992) - Denser than water; will sink
Physical Description
Beta-butyrolactone is a clear colorless liquid with an acetone-like odor. (NTP, 1992) Clear colorless liquid with an odor like acetone; [CAMEO]
State
Liquid

Computed Properties

Structural Parameters

Heavy atom count
6
Fraction Csp3
0.75
H-bond acceptors
2
Molar refractivity
20.17
TPSA
26.3

LogP / Solubility

WLOGP
0.32
MLOGP
0.27
XLogP3
0.3
Consensus LogP
0.3
Log S (ESOL)
-0.58
Class (ESOL)
Very soluble
Log S (Ali)
-0.5
Class (Ali)
Very soluble
Log S (SILICOS-IT)
-0.49
Class (SILICOS-IT)
Very soluble

ADME

GI absorption
High
BBB permeant
Yes
P-gp substrate
No
CYP1A2 inhibitor
No
CYP2C19 inhibitor
No
CYP2C9 inhibitor
No
CYP2D6 inhibitor
No
CYP3A4 inhibitor
No
Log Kp (skin permeation)
-3.02

Drug-likeness / Medicinal Chemistry

Lipinski
Yes
Ghose
No
Veber
Yes
Egan
Yes
Muegge
No
Bioavailability score
0.55
Brenk alerts
1
Leadlikeness
No
Synthetic Accessibility
2

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