4-Nitrobenzenethiol

About 4-Nitrobenzenethiol

4-Nitrobenzenethiol is an impurity of Fludarabine carrying the CAS registry number 1849-36-1. Its molecular formula is C6H5NO2S and its molecular weight is 155.18 g/mol. Alternative names: 4-Nitrothiophenol and p-Nitrothiophenol.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

This Fludarabine impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, 4-Nitrobenzenethiol is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Fludarabine

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

Fludarabine impurities

Specifications & identifiers

Chemical identifiers
Product name	4-Nitrobenzenethiol
Catalogue No.	VQ-049494
CAS Number	1849-36-1
IUPAC name	4-nitrobenzenethiol
Molecular formula	C₆H₅NO₂S
Molecular weight	155.18 g/mol
Exact mass	155.0041
Grade	Reference Standard
HSN code	38229090
InChIKey	AXBVSRMHOPMXBA-UHFFFAOYSA-N
SMILES	C1=CC(=CC=C1[N+](=O)[O-])S
PubChem CID	15809

Physical properties
Physical form	Solid
LogP (XLogP3)	2
H-bond donors / acceptors	1 / 3
TPSA	46.8 Å²
Synonyms	4-Nitrothiophenol, p-Nitrothiophenol, Benzenethiol, 4-nitro-, Benzenethiol, p-nitro-, 4-Nitrothiophenolate, para-nitrothiophenol, 4-nitrobenzene-1-thiol, p-Nitrophenyl mercaptan, 4-Nitrothiophenol (Contains Dimer), p-nitro thiophenol, p-nitrophenyl thiol

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, 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

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 4-Nitrobenzenethiol?

The CAS Registry Number of 4-Nitrobenzenethiol is 1849-36-1. It is also known as 4-Nitrothiophenol, p-Nitrothiophenol, Benzenethiol, 4-nitro-.

What is the molecular formula and molecular weight of 4-Nitrobenzenethiol?

4-Nitrobenzenethiol has the molecular formula C6H5NO2S and a molecular weight of 155.18 g/mol. Its IUPAC name is 4-nitrobenzenethiol.

What is 4-Nitrobenzenethiol used for?

4-Nitrobenzenethiol is supplied as a characterised reference material related to Fludarabine. 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 4-Nitrobenzenethiol can I order?

We supply 4-Nitrobenzenethiol 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 4-Nitrobenzenethiol?

Yes. Every lot of 4-Nitrobenzenethiol 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 4-Nitrobenzenethiol be shipped internationally?

Yes. 4-Nitrobenzenethiol 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.