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CAS 5661-55-2 4-Phenyl-2-azetidinone molecular structure lightbox
CAS RN: 5661-55-2

4-Phenyl-2-azetidinone

Product Availability

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5 package records4 with current stock1 grade group
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20250802 100mg In stock Shanghai, Chengdu Inquiry
Batchno.20260404 100mg / 250mg / 1g Confirm by inquiry Shanghai Inquiry
Batchno.20250605 1g In stock Shanghai, Shenzhen, Tianjin, Chengdu Inquiry
Batchno.20251120 250mg In stock Shanghai, Chengdu Inquiry
Batchno.20260223 5g Out of stock Inquiry
  • Product code: SSC-164619
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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 5661-55-2
Pack Size Recorded Purity Available Qty Ship From Inquiry
1g ≥95% 0 Out of Stock Hong Kong Inquiry

5661-55-2 / 4-phenylazetidin-2-one

Standard CAS: 5661-55-2 Multi CAS: Yes
Basic Information Computed Properties

Basic Information

CAS
5661-55-2
Multi CAS
Yes
Molecular Formula
C9H9NO
Molecular Weight
147.170000
Exact Mass
147.068414
InChI
InChI=1S/C9H9NO/c11-9-6-8(10-9)7-4-2-1-3-5-7/h1-5,8H,6H2,(H,10,11)
InChIKey
MWKMQPSNTJCASD-UHFFFAOYSA-N

Computed Properties

Structural Parameters

Heavy atom count
11
Aromatic heavy atom count
6
Fraction Csp3
0.22
Rotatable bonds
1
H-bond acceptors
1
H-bond donors
1
Molar refractivity
41.94
TPSA
29.1

LogP / Solubility

WLOGP
1.25
MLOGP
1.09
XLogP3
0.8
Consensus LogP
1.05
Log S (ESOL)
-1.88
Class (ESOL)
Soluble
Log S (Ali)
-1.67
Class (Ali)
Soluble
Log S (SILICOS-IT)
-1.77
Class (SILICOS-IT)
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)
-2.73

Drug-likeness / Medicinal Chemistry

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

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