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Merck
CN

72028

Sodium tetrathionate dihydrate

BioUltra, ≥99.0% (T)

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About This Item

Linear Formula:
NaO3SS2SO3Na · 2H2O
CAS Number:
Molecular Weight:
306.27
UNSPSC Code:
12352300
PubChem Substance ID:
MDL number:
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product line

BioUltra

assay

≥99.0% (T)

impurities

insoluble matter, passes filter test, 10.5-12.5% water (Karl Fischer)

pH

3.8-6.0 (25 °C, 0.1 M in H2O)

solubility

H2O: 0.1 M at 20 °C, clear, colorless

density

2.1 g/mL at 25 °C (lit.)

anion traces

thiosulfate (S2O32-): ≤500 mg/kg

cation traces

Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤50 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

absorption

cut-off at 311 nm in H2O at 0.1 M

storage temp.

2-8°C

SMILES string

O.O.[Na+].[Na+].[O-]S(=O)(=O)SSS([O-])(=O)=O

InChI

1S/2Na.H2O6S4.2H2O/c;;1-9(2,3)7-8-10(4,5)6;;/h;;(H,1,2,3)(H,4,5,6);2*1H2/q2*+1;;;/p-2

InChI key

HAEPBEMBOAIUPN-UHFFFAOYSA-L

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Other Notes

Quantitative determination of cystine and cysteine in proteins; Reversibly modifies the essential cysteinyl residues in bact. luciferase; In conjunction with sodium sulfite to remove nucleic acids from yeast nucleoprotein complexes by sulfitolysis

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

新产品

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S. Damodaran
Journal of Agricultural and Food Chemistry, 34, 26-26 (1986)
J Cousineau et al.
Canadian journal of biochemistry, 55(4), 433-438 (1977-04-01)
Sequential modification of two amino acid residues (a histidyl and a cysteinyl residue), both essential for the enzymatic function of bacterial luciferase from Beneckea harveyi, has been conducted to determine if the inactivation arising from the chemical modification of either
The stability of cysteine and cystine during acid hydrolysis of proteins and peptides.
A S Inglis et al.
The Journal of biological chemistry, 245(1), 112-116 (1970-01-10)
The mechanism of inactivation of glyceraldehyde 3-phosphate dehydrogenase by tetrathionate, o-iodosobenzoate, and iodine monochloride.
D J Parker et al.
The Journal of biological chemistry, 244(1), 180-189 (1969-01-10)
The Crystal Structure of Sodium Tetrathionate Dihydrate.
Foss O and Hordvik A.
Acta Chemica Scandinavica, 18(3), 662-662 (1964)

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