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CAS 21651-19-4 TIN(II) OXIDE molecular structure lightbox
CAS RN: 21651-19-4

TIN(II) OXIDE

Product Availability

Choose a grade to view its available package options.

14 package records12 with current stock4 grade groups
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20251224 25g / 100g / 500g / 2.5kg Confirm by inquiry Shanghai, Shandong, Guangdong Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20250626 100g In stock Shanghai, Guangdong Inquiry
Batchno.20251129 2.5kg In stock Shanghai Inquiry
Batchno.20260518 25g In stock Shanghai, Hebei Inquiry
Batchno.20250930 500g In stock Shanghai, Chongqing Inquiry
Batchno.20250316 5g In stock Shanghai, Guangdong, Chongqing Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20260504 100g In stock Shanghai, Shenzhen, Chengdu Inquiry
Batchno.20250307 10kg Out of stock Inquiry
Batchno.20250416 1kg Out of stock Inquiry
Batchno.20260531 25g In stock Shanghai, Shenzhen, Tianjin Inquiry
Batchno.20250228 500g In stock Shanghai Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20260221 100g In stock Shanghai, Shandong, Chongqing Inquiry
Batchno.20251119 2.5kg In stock Shanghai, Shandong, Guangdong Inquiry
Batchno.20251030 500g In stock Shanghai, Shandong, Guangdong, Chongqing Inquiry
  • Product code: SSC-103725
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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: 100g
  • 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 21651-19-4
Pack Size Recorded Purity Available Qty Ship From Inquiry
100g ≥95% 0 Out of Stock Beijing Inquiry

21651-19-4 / oxotin

Standard CAS: 21651-19-4 Multi CAS: No
Basic Information Physical Properties Computed Properties

Basic Information

CAS
21651-19-4
Multi CAS
No
Molecular Formula
OSn
Molecular Weight
134.710000
Exact Mass
135.897117
SMILES
O=[Sn]
InChI
InChI=1S/O.Sn
InChIKey
QHGNHLZPVBIIPX-UHFFFAOYSA-N

Physical Properties

Melting Point
1976 °F @ 600 mmHg. (Decomposes) (NIOSH, 2024) 1976 °F@600 mmHg (decomposes) (600 mmHg): 1976 °F (Decomposes)
Boiling Point
Decomposes (NIOSH, 2024) decomposes Decomposes
Density
6.3 (NIOSH, 2024) - Denser than water; will sink 6.45 g/cm³ 6.3
Physical Description
Tin(ii) oxide appears as brownish-black powder or black to blue-black crystalline solid. Mp: 1080 °C (decomposes); density: 6.45 g cm-3. Insoluble in water. Dry Powder; Other Solid Brownish-black solid; [Merck Index] Bluish-black odorless powder; BLUE-TO-BLACK CRYSTALLINE POWDER. Brownish-black powder or black to blue-black crystalline solid.
State
Solid

Computed Properties

Structural Parameters

Heavy atom count
2
H-bond acceptors
1
Molar refractivity
6.44
TPSA
17.07

LogP / Solubility

WLOGP
-0.5
MLOGP
-0.45
XLogP3
-0.5
Consensus LogP
-0.48
Log S (ESOL)
-0.36
Class (ESOL)
Very soluble
Log S (Ali)
-0.3
Class (Ali)
Very soluble
Log S (SILICOS-IT)
-0.12
Class (SILICOS-IT)
Very soluble

ADME

GI absorption
Low
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)
-3.9

Drug-likeness / Medicinal Chemistry

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

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