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Nitrosamine ImpuritiesReference StandardAvailable on request

N-Nitroso Labetalol

Synonyms: N-Nitroso-Labetalol (Mixture of isomers) · 2-Hydroxy-5-(1-hydroxy-2-(nitroso(4-phenylbutan-2-yl)amino)ethyl)benzamide · 2-hydroxy-5-{1-hydroxy-2-[nitroso(4-phenylbutan-2-yl)amino]ethyl}benzamide · N-Nitroso Labetalol (Mixture of Diastereomers)

CAS No.2820170-74-7
FormulaC19H23N3O4
Mol. weight357.40
Catalogue No.VQ-021245
PurityReference Standard
HSN38229090

N-Nitroso Labetalol (CAS 2820170-74-7) – nitrosamine impurity reference standard. C19H23N3O4, MW 357.4. Request a quote: COA, bulk packs and worldwide export.

Pack sizesPrice on quotation · bulk available
10 mg
25 mg
50 mg
100 mg
Bulk / custom pack · kg to MT
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Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing

About N-Nitroso Labetalol

N-Nitroso Labetalol is a nitrosamine impurity of Labetalol carrying the CAS registry number 2820170-74-7. The compound has the formula C19H23N3O4, corresponding to a molecular weight of 357.4 g/mol. Its systematic (IUPAC) name is 2-hydroxy-5-[1-hydroxy-2-[nitroso(4-phenylbutan-2-yl)amino]ethyl]benzamide. It is also known as N-Nitroso-Labetalol (Mixture of isomers).

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Laboratories use this nitrosamine standard to develop and validate highly sensitive LC-MS/MS methods, to confirm limits of detection and to document nitrosamine risk assessments in regulatory submissions. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer N-Nitroso Labetalol in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

  • Nitrosamine risk assessment
  • Trace LC-MS/MS quantitation
  • Method validation (AMV)
  • Regulatory submissions

Industries

Related to Labetalol

View every impurity, metabolite and intermediate we list for Labetalol.

Labetalol impurities

Specifications & identifiers

Chemical identifiers
Product nameN-Nitroso Labetalol
Catalogue No.VQ-021245
CAS Number2820170-74-7
IUPAC name2-hydroxy-5-[1-hydroxy-2-[nitroso(4-phenylbutan-2-yl)amino]ethyl]benzamide
Molecular formulaC19H23N3O4
Molecular weight357.4 g/mol
Exact mass357.1689
GradeReference Standard
HSN code38229090
InChIKeyKQZMONDKWBDGEU-UHFFFAOYSA-N
SMILESCC(CCC1=CC=CC=C1)N(CC(C2=CC(=C(C=C2)O)C(=O)N)O)N=O
PubChem CID169441362
Physical properties
Physical formSolid
LogP (XLogP3)3.5
H-bond donors / acceptors3 / 6
TPSA116 Ų
SynonymsN-Nitroso-Labetalol (Mixture of isomers), 2-Hydroxy-5-(1-hydroxy-2-(nitroso(4-phenylbutan-2-yl)amino)ethyl)benzamide, 2-hydroxy-5-{1-hydroxy-2-[nitroso(4-phenylbutan-2-yl)amino]ethyl}benzamide, N-Nitroso Labetalol (Mixture of Diastereomers), 2-Hydroxy-5-[1-hydroxy-2-[(1-methyl-3-phenylpropyl)nitrosoamino]ethyl]benzamide, Benzamide, 2-hydroxy-5-[1-hydroxy-2-[(1-methyl-3-phenylpropyl)nitrosoamino]ethyl]-

Safety & hazard information (GHS)

GHS07 Harmful / irritant
Harmful / irritant
GHS08 Health hazard
Health hazard

Signal word: Warning

Hazard statements

  • H302Harmful if swallowed
  • H312Harmful in contact with skin
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H332Harmful if inhaled
  • H335May cause respiratory irritation
  • H351Suspected of causing cancer
  • H373May causes damage to organs through prolonged or repeated exposure

Precautionary statements: P203, P260, P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P318, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Frequently asked questions

What is the CAS number of N-Nitroso Labetalol?

The CAS Registry Number of N-Nitroso Labetalol is 2820170-74-7. It is also known as N-Nitroso-Labetalol (Mixture of isomers), 2-Hydroxy-5-(1-hydroxy-2-(nitroso(4-phenylbutan-2-yl)amino)ethyl)benzamide, 2-hydroxy-5-{1-hydroxy-2-[nitroso(4-phenylbutan-2-yl)amino]ethyl}benzamide.

What is the molecular formula and molecular weight of N-Nitroso Labetalol?

N-Nitroso Labetalol has the molecular formula C19H23N3O4 and a molecular weight of 357.4 g/mol. Its IUPAC name is 2-hydroxy-5-[1-hydroxy-2-[nitroso(4-phenylbutan-2-yl)amino]ethyl]benzamide.

What is N-Nitroso Labetalol used for?

N-Nitroso Labetalol is supplied as a characterised reference material related to Labetalol. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of N-Nitroso Labetalol can I order?

We supply N-Nitroso Labetalol in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with N-Nitroso Labetalol?

Yes. Every lot of N-Nitroso Labetalol is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can N-Nitroso Labetalol be shipped internationally?

Yes. N-Nitroso Labetalol is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.

Enquire about N-Nitroso Labetalol

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Why buyers choose Vaqora

  • Batch-traceable lots with COA
  • R&D packs to multi-tonne supply
  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
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Related products

Reference Standard
Labetalol Acetonide chemical structure
Labetalol Acetonide
CAS
2731858-23-2
Formula
C22H28N2O3
MW
368.5 g/mol
VQ-022908
Reference Standard
Labetol Impurity C chemical structure
Labetol Impurity C
CAS
30566-92-8
Formula
C23H22N2O3
MW
374.4 g/mol
VQ-022912

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