[email protected]
CAS 7681-57-4 Sodium metabisulfite molecular structure lightbox
CAS RN: 7681-57-4

Sodium metabisulfite

Product Availability

Choose a grade to view its available package options.

8 package records8 with current stock4 grade groups
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20251018 100g / 500g / 2.5kg Confirm by inquiry Shanghai, Shandong, Guangdong, Chongqing, Hebei Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20250101 100g In stock Shenzhen, Tianjin, Chengdu Inquiry
Batchno.20250202 1kg In stock Shenzhen, Tianjin, Wuhan Inquiry
Batchno.20260308 500g In stock Shenzhen, Tianjin, Chengdu Inquiry
Batchno.20251116 5kg In stock Shanghai Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20250419 100g In stock Inquiry
Batchno.20250423 5kg In stock Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20250611 100g / 500g / 2.5kg / 10kg / 12X500g Confirm by inquiry Shanghai, Shandong, Guangdong, Chongqing, Hebei Inquiry
  • Product code: SSC-186233
GET A QUOTE
Verified Factory Data

Supply Overview & Packaging Options

Packaging options, recorded purity, stock quantity and ship-from location below are generated from the current factory data table for this CAS.

  • Pack sizes on record: 100g, 500g, 1000g
  • Available purity: >97%
  • Inventory rows with stock: 3
  • Bulk packaging: confirmed by inquiry
Request Bulk Quote

Available Pack Sizes & Stock

Specific stock quantities are shown below. Price is not displayed online and is confirmed by inquiry.

Recorded sizes, purity and stock details for CAS 7681-57-4
Pack Size Recorded Purity Available Qty Ship From Inquiry
100g >97% 5 In Stock Beijing Inquiry
500g >97% 5 In Stock Shanghai Inquiry
1000g >97% 5 In Stock Beijing Inquiry

7681-57-4 / Sodium metabisulfite

Standard CAS: 7681-57-4 Multi CAS: Yes
Basic Information Physical Properties Computed Properties

Basic Information

CAS
7681-57-4
Multi CAS
Yes
Molecular Formula
NA2O5S2
Molecular Weight
190.110000
Exact Mass
189.898254
InChI
InChI=1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChIKey
HRZFUMHJMZEROT-UHFFFAOYSA-L

Physical Properties

Melting Point
greater than 302 °F (Decomposes) (NIOSH, 2024) >302 °F (decomposes) >302 °F (Decomposes)
Boiling Point
Decomposes (NIOSH, 2024) decomposes Decomposes
Density
1.4 (NIOSH, 2024) - Denser than water; will sink Specific gravity: 1.4 at 25 °C/4 °C 2.36 g/cm³ 1.4
Physical Description
Sodium metabisulfite appears as a white crystalline or powder solid with a slight sulfur odor. Toxic by inhalation. Strongly irritates skin and tissue. Noncombustible, but may decompose to emit toxic oxide fumes of sulfur and sodium when heated to high temperature. A corrosive acid when mixed with water. Used as a food preservative and as a laboratory reagent. Dry Powder; Other Solid; NKRA; Pellets or Large Crystals White crystals or crystalline powder White to yellowish crystals or powder with an odor of sulfur dioxide; [NIOSH] WHITE POWDER WITH CHARACTERISTIC ODOUR.
Appearance
White hexagonal crystals or powder White to yellowish crystals or powder. Colorless crystals White granular or powdered salt
State
Solid

Computed Properties

Structural Parameters

Heavy atom count
9
Rotatable bonds
1
H-bond acceptors
5
Molar refractivity
18.62
TPSA
97.33

LogP / Solubility

WLOGP
-7.67
MLOGP
-6.75
XLogP3
-7.67
Consensus LogP
-7.36
Log S (ESOL)
3.88
Class (ESOL)
Highly soluble
Log S (Ali)
4.42
Class (Ali)
Highly soluble
Log S (SILICOS-IT)
5.35
Class (SILICOS-IT)
Highly soluble

ADME

GI absorption
Low
BBB permeant
No
P-gp substrate
No
CYP1A2 inhibitor
No
CYP2C19 inhibitor
No
CYP2C9 inhibitor
No
CYP2D6 inhibitor
No
CYP3A4 inhibitor
No
Log Kp (skin permeation)
-9.32

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

Customers Also Viewed

Get In Touch

Contact Us