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CAS 51649-83-3 6-Aminofluorescein (isomer II) molecular structure lightbox
CAS RN: 51649-83-3

6-Aminofluorescein (isomer II)

Product Availability

Choose a grade to view its available package options.

12 package records8 with current stock5 grade groups
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20260331 1g In stock Shanghai, Hebei Inquiry
Batchno.20250327 250mg In stock Shanghai, Chongqing, Hebei Inquiry
Batchno.20250607 5g Out of stock 5-7 business days Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20250210 1g In stock Inquiry
Batchno.20260412 250mg In stock Inquiry
Batchno.20250426 5g In stock Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20250111 100mg In stock Shanghai, Shenzhen, Tianjin Inquiry
Batchno.20260201 1g In stock Shenzhen, Chengdu Inquiry
Batchno.20250802 250mg In stock Shenzhen Inquiry
Batchno.20260621 5g Out of stock Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20250808 250mg Out of stock 8-10 business days Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20250630 250mg / 1g / 5g Out of stock 8-10 business days Inquiry
  • Product code: SSC-158588
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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: ＞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 51649-83-3
Pack Size Recorded Purity Available Qty Ship From Inquiry
1g ＞97% 0 Out of Stock Hong Kong Inquiry

51649-83-3 / 5-amino-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one

Standard CAS: 51649-83-3 Multi CAS: Yes
Basic Information Computed Properties

Basic Information

CAS
51649-83-3
Multi CAS
Yes
Molecular Formula
C20H13NO5
Molecular Weight
347.300000
Exact Mass
347.079373
InChI
InChI=1S/C20H13NO5/c21-10-1-4-13-16(7-10)20(26-19(13)24)14-5-2-11(22)8-17(14)25-18-9-12(23)3-6-15(18)20/h1-9,22-23H,21H2
InChIKey
YOAWSYSKQHLFPM-UHFFFAOYSA-N

Computed Properties

Structural Parameters

Heavy atom count
26
Aromatic heavy atom count
18
Fraction Csp3
0.05
H-bond acceptors
6
H-bond donors
3
Molar refractivity
92.44
TPSA
102.01

LogP / Solubility

WLOGP
3.25
MLOGP
2.88
XLogP3
2.7
Consensus LogP
2.94
Log S (ESOL)
-4.55
Class (ESOL)
Slightly soluble
Log S (Ali)
-4.75
Class (Ali)
Slightly soluble
Log S (SILICOS-IT)
-4.61
Class (SILICOS-IT)
Slightly soluble

ADME

GI absorption
High
BBB permeant
No
P-gp substrate
No
CYP1A2 inhibitor
Yes
CYP2C19 inhibitor
Yes
CYP2C9 inhibitor
No
CYP2D6 inhibitor
Yes
CYP3A4 inhibitor
No
Log Kp (skin permeation)
-2.53

Drug-likeness / Medicinal Chemistry

Lipinski
Yes
Ghose
Yes
Veber
Yes
Egan
Yes
Muegge
Yes
Bioavailability score
0.55
Brenk alerts
1
Leadlikeness
Yes
Synthetic Accessibility
4.5

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