What is the Hydroxylamine-O-sulfonic acid?

Hydroxylamine-O-sulfonic acid is white to slightly beige crystalline powder, while it's Molecular Formula is H3NO4S. white to slightly beige crystalline powder Hydroxylamine-O-sulfonic acid (HOSA) may be used to synthesize (Z)-1H-purin-6(7H)-ylideneaminooxysulfonic acid. HOSA may be used as an aminating reagent in the synthesis of:1-aminotetrazoles and 2-aminotetrazolesN-aminopiperidine (NAPP)1H,1′ H-2,2′-biimidazole-1,1′-diamine

What is the CAS number for Hydroxylamine-O-sulfonic acid?

The CAS number of Hydroxylamine-O-sulfonic acid is 2950-43-8.

What is Hydroxylamine-O-sulfonic acid (2950-43-8) used for?

Hydroxylamine-O-sulfonic acid (HOSA) is a versatile synthetic reagent that is widely employed as both a nucleophile and an electrophile in various organic syntheses. It is a white to slightly beige crystalline powder and can be synthesized by reacting hydroxylamine sulfate with 30% fuming H2SO4.InChI:InChI=1/H3NO4S/c1-5-6(2,3)4/h1H2,(H,2,3,4)

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Product NameHydroxylamine-O-sulfonic acid
CasNo. 2950-43-8
MFH₃NO₄S
MW113.094
Purity
Appearancewhite to slightly beige crystalline powder
Packing
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Product Details

CasNo： 2950-43-8

MF： H₃NO₄S

Appearance： white to slightly beige crystalline powder

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Molecular Formula:H3NO4S
Molecular Weight:113.094
Appearance/Colour:white to slightly beige crystalline powder
Vapor Pressure:0-53.329Pa at 25-39℃
Melting Point:210 °C (dec.)(lit.)
Refractive Index:1.534
Boiling Point:39 °C(Press: 0.4 Torr)
PKA:-6.47±0.18(Predicted)
PSA：98.00000
Density:1.98 g/cm³
LogP:0.46060

Hydroxylamine-O-sulfonic acid(Cas 2950-43-8) Usage

Purification Methods

Stir the solid vigorously with anhydrous Et2O and filter it off using large volumes of dry Et2O. Drain dry at the pump for 5minutes and then for 12-14hours in a vacuum. Store it in a vacuum desiccator over conc H2SO4. Determine the purity by oxidation of iodide to I2. It must be stored in a dry atmosphere at 0-4o. It decomposes slowly in H2O at 25o and more rapidly above this temperature. [Matsuguma & Andrieth Inorg Synth V 122 1957.]

General Description

Hydroxylamine-O-sulfonic acid is a versatile synthetic reagent. It is widely employed as a nucleophile and as an electrophile in various organic syntheses. It can be synthesized by reacting hydroxylamine sulfate with 30% fuming H2SO4.

InChI:InChI=1/H3NO4S/c1-5-6(2,3)4/h1H2,(H,2,3,4)