MilliporeSigma
All Photos(3)

159417

Sigma-Aldrich

Hydroxylamine hydrochloride

ReagentPlus®, 99%

Sign Into View Organizational & Contract Pricing

Select a Size

Synonym(s):
Hydroxylammonium chloride
Linear Formula:
NH2OH · HCl
CAS Number:
Molecular Weight:
69.49
Beilstein:
3539763
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor pressure

0.001 hPa ( 50 °C)

Quality Level

product line

ReagentPlus®

Assay

99%

form

crystalline

technique(s)

inhibition assay: suitable

pH

2.5-3.5 (20 °C, 50 g/L)

mp

155-157 °C (dec.) (lit.)

density

1.67 g/mL at 25 °C (lit.)

SMILES string

Cl.NO

InChI

1S/ClH.H3NO/c;1-2/h1H;2H,1H2

InChI key

WTDHULULXKLSOZ-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
55460431362255580
Hydroxylamine hydrochloride puriss. p.a., ACS reagent, ≥99.0% (RT)

Sigma-Aldrich

55460

Hydroxylamine hydrochloride

Essential Grade
assay

99%

assay

≥99.0% (RT)

assay

99.999% trace metals basis

assay

98.0%

form

crystalline

form

powder or crystals

form

crystals

form

powder, crystals or chunks

pH

2.5-3.5 (20 °C, 50 g/L)

pH

2.5-3.5 (25 °C, 50 mg/mL in H2O)

pH

2.5-3.5 (20 °C, 50 g/L)

pH

2.5-3.5 (20 °C, 50 g/L)

mp

155-157 °C (dec.) (lit.)

mp

155-157 °C (dec.) (lit.)

mp

155-157 °C (dec.) (lit.)

mp

155-157 °C (dec.) (lit.)

density

1.67 g/mL at 25 °C (lit.)

density

1.67 g/mL at 25 °C (lit.)

density

1.67 g/mL at 25 °C (lit.)

density

1.67 g/mL at 25 °C (lit.)

General description

Hydroxylamine hydrochloride (Hydroxylammonium chloride) participates in the synthesis of 1,2,4-oxadiazoles, secondary amides and tertiary amides.
Hydroxylamine hydrochloride (NH2OH.HCl) is a hygroscopic salt widely used as a reactant in electrophilic substitution reactions, oxidation, and reduction reactions. It is also used in the synthesis of nitriles, pyrazoles, isoxazoles, nitrones, and pyridine.

Application

Hydroxylamine hydrochloride can be used as a reactant:
  • in the synthesis of primary amides from aldehydes in the presence of cesium carbonate (Cs2CO3) as a catalyst.
  • in the conversion of alicyclic /aliphatic carbonyl compounds and the aromatic aldehydes into corresponding oximes.
  • in the one-pot synthesis of nitriles from aldehydes in the presence of sodium sulfate (anhyd) and sodium bicarbonate catalysts.
  • It can also be used as a reducing agent in the preparation of single-layer reduced graphene oxide (RGO) sheets and films.

Biochem/physiol Actions

MAO inhibitor; inhibits platelet aggregation.

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 2 - Carc. 2 - Eye Irrit. 2 - Met. Corr. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Oral

Target Organs

spleen

Storage Class Code

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 3

1 of 3

Susie Suh et al.
Nature biomedical engineering, 5(2), 169-178 (2020-10-21)
Cytosine base editors and adenine base editors (ABEs) can correct point mutations predictably and independent of Cas9-induced double-stranded DNA breaks (which causes substantial indel formation) and homology-directed repair (which typically leads to low editing efficiency). Here, we show, in adult
Braedon McDonald et al.
Cell host & microbe, 28(5), 660-668 (2020-08-19)
Eradication of pathogens from the bloodstream is critical to prevent disseminated infections and sepsis. Kupffer cells in the liver form an intravascular firewall that captures and clears pathogens from the blood. Here, we show that the catching and killing of
Magnesia-supported hydroxylamine hydrochloride in the presence of sodium carbonate as an efficient reagent for the synthesis of 1, 2, 4-oxadiazoles from nitriles.
Kaboudin B and Saadati F.
Tetrahedron Letters, 48(16), 2829-2832 (2007)
Dongwoo Kim et al.
Analytical chemistry, 81(21), 9183-9187 (2009-10-31)
We report the use of electroless gold deposition as a light scattering signal enhancer in a multiplexed, microarray-based scanometric immunoassay using gold nanoparticle probes. The use of gold development results in greater signal enhancement than the typical silver development, and
Ritika Tewari et al.
The Journal of biological chemistry, 296, 100311-100311 (2021-01-23)
ZAP-70 is a tyrosine kinase essential for T cell immune responses. Upon engagement of the T cell receptor (TCR), ZAP-70 is recruited to the specialized plasma membrane domains, becomes activated, and is released to phosphorylate its laterally segregated targets. A

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service