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Merck

161527

Sodium hydrosulfide hydrate

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About This Item

Linear Formula:
NaSH·xH2O
CAS Number:
Molecular Weight:
56.06 (anhydrous basis)
NACRES:
NA.55
PubChem Substance ID:
UNSPSC Code:
12352302
MDL number:
Form:
chips, flakes
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Quality Level

form

chips, flakes

concentration

≥60% (by Na2S2O3, titration)

mp

52-54 °C (lit.)

SMILES string

[Na]S.[H]O[H]

InChI

1S/Na.H2O.H2S/h;2*1H2/q+1;;/p-1

InChI key

ZNKXTIAQRUWLRL-UHFFFAOYSA-M

General description

Sodium hydrosulfide hydrate is a hydrated inorganic salt of sodium. It participates in the synthesis of (E)-2-cyano-2-(thiazolidin-2-ylidene)ethanethioamide.

Application

It may be used as a sulfur nucleophile to induce the C-S bond formation in α,β-dichloro vinyl ketones to form 5- to 8-membered cyclic thioethers.
Sodium hydrosulfide hydrate may be used in the synthesis of following:
  • benzothiazole
  • 4-methoxybenzothioamide
  • 2-(4-methoxyphenyl)imidazoline
  • 7-chloro-4′-methoxythioflavone


signalword

Danger

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

flash_point_f

194.0 °F - closed cup

flash_point_c

90 °C - closed cup

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Acute 1 - Eye Dam. 1 - Skin Corr. 1B



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Mehdi Bakavoli et al.
Molecules (Basel, Switzerland), 14(12), 4849-4857 (2009-12-25)
Cyclocondensation of 2-[bis(methylthio)methylene]malononitrile (1) and cysteamine (2) afforded 2-(thiazolidin-2-ylidene)malononitrile (3). This compound on treatment with NaSH gave the corresponding thioamide derivative 4a in a regioselective manner on the basis of its single crystal X-ray diffraction analysis. Reaction of this compound
Bruna M Santos et al.
Acta physiologica (Oxford, England), 228(3), e13373-e13373 (2019-09-05)
Whereas some patients have important changes in body core temperature (Tb) during systemic inflammation, others maintain a normal Tb, which is intrinsically associated to immune paralysis. One classical model to study immune paralysis is the use of repeated administration of
Zili Zhang et al.
Life sciences, 232, 116650-116650 (2019-07-16)
Inhalation of NO2 leads to a progressive airflow limitation and the development of emphysema-like lesions. We report on the efficacy of hydrogen sulfide (NaHS) for alleviating NO2-induced pulmonary impairment. Sprague Dawley rats were exposed to 20 ppm NO2 for 6 h over