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CAS 90-33-5 4-Methylumbelliferone molecular structure lightbox
CAS RN: 90-33-5

4-Methylumbelliferone

Product Availability

Choose a grade to view its available package options.

7 package records7 with current stock2 grade groups
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20251227 100g In stock Shanghai, Shenzhen, Tianjin, Wuhan Inquiry
Batchno.20260308 1kg In stock Shanghai Inquiry
Batchno.20250814 1mg In stock Shanghai, Tianjin, Wuhan Inquiry
Batchno.20250305 25mg In stock Shanghai, Shenzhen, Wuhan Inquiry
Batchno.20250228 500g In stock Shanghai, Shenzhen, Wuhan, Chengdu Inquiry
Batchno.20260129 5g / 25g / 100g / 500g / 2.5kg Confirm by inquiry Shanghai, Shandong, Guangdong, Chongqing, Hebei Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20260409 25g / 100g / 500g Confirm by inquiry Shanghai 8-10 business days Inquiry
  • Product code: SSC-202277
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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: 500g
  • Available purity: ≥97%
  • 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 90-33-5
Pack Size Recorded Purity Available Qty Ship From Inquiry
500g ≥97% 0 Out of Stock Beijing Inquiry

90-33-5 / 7-hydroxy-4-methylchromen-2-one

Standard CAS: 90-33-5 Multi CAS: No
Basic Information Physical Properties Computed Properties

Basic Information

CAS
90-33-5
Multi CAS
No
Molecular Formula
C10H8O3
Molecular Weight
176.170000
Exact Mass
176.047344
InChI
InChI=1S/C10H8O3/c1-6-4-10(12)13-9-5-7(11)2-3-8(6)9/h2-5,11H,1H3
InChIKey
HSHNITRMYYLLCV-UHFFFAOYSA-N

Physical Properties

Melting Point
381 to 383 °F (NTP, 1992)
Physical Description
Beta-methylumbelliferone appears as colorless crystals. Insoluble in water. (NTP, 1992) Colorless solid; [CAMEO] Off-white powder; Solid
State
Solid

Computed Properties

Structural Parameters

Heavy atom count
13
Aromatic heavy atom count
10
Fraction Csp3
0.1
H-bond acceptors
3
H-bond donors
1
Molar refractivity
48.89
TPSA
50.44

LogP / Solubility

WLOGP
1.81
MLOGP
1.59
XLogP3
1.9
Consensus LogP
1.77
Log S (ESOL)
-2.64
Class (ESOL)
Moderately soluble
Log S (Ali)
-2.31
Class (Ali)
Moderately soluble
Log S (SILICOS-IT)
-2.3
Class (SILICOS-IT)
Moderately soluble

ADME

GI absorption
High
BBB permeant
Yes
P-gp substrate
No
CYP1A2 inhibitor
Yes
CYP2C19 inhibitor
No
CYP2C9 inhibitor
No
CYP2D6 inhibitor
No
CYP3A4 inhibitor
No
Log Kp (skin permeation)
-2.51

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
1.5

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