55777
Potassium disulfite
analytical standard
Synonym(s):
E224, Potassium metabisulfite, Potassium pyrosulfite
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About This Item
Linear Formula:
K2S2O5
CAS Number:
Molecular Weight:
222.32
NACRES:
NA.24
PubChem Substance ID:
UNSPSC Code:
85151701
EC Number:
240-795-3
MDL number:
grade
analytical standard
Quality Level
assay
≥98% (RT)
shelf life
limited shelf life, expiry date on the label
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
solubility
H2O: 200 mg/mL, clear to very slightly hazy, colorless
application(s)
cleaning products
cosmetics
food and beverages
personal care
format
neat
SMILES string
[K+].[K+].[O-]S(=O)S([O-])(=O)=O
InChI
1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChI key
RWPGFSMJFRPDDP-UHFFFAOYSA-L
General description
Potassium disulfite (Potassium metabisulfite, PMB) is an inorganic salt with antimicrobial properties. It is a sulfiting agent that prevents browning of foods.
Application
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
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signalword
Danger
supp_hazards
Storage Class
11 - Combustible Solids
wgk
WGK 1
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Irrit. 2
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Sven Hildebrand et al.
Scientific reports, 9(1), 10880-10880 (2019-07-28)
Optical clearing techniques and light sheet microscopy have transformed fluorescent imaging of rodent brains, and have provided a crucial alternative to traditional confocal or bright field techniques for thin sections. However, clearing and labeling human brain tissue through all cortical
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 332135-100MG | 04061826728710 |
| 55777-1G | 04061832582986 |