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Metabolites & Degradation ProductsReference StandardAvailable on request

4-Hydroxybutyl Methanesulfonate

Synonyms: 4-Methanesulfonyloxybutanol · 1,4-Butanediolmonomethylsulfonsaeure ester · 4-methanesulfonyloxy-butanol

CAS No.42729-95-3
FormulaC5H12O4S
Mol. weight168.21
Catalogue No.VQ-024705
PurityReference Standard
HSN38229090

4-Hydroxybutyl Methanesulfonate (CAS 42729-95-3) – Busulfan impurity standard. C5H12O4S, MW 168.21. Supplied by Vaqora Chemicals with COA, exported worldwide.

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 4-Hydroxybutyl Methanesulfonate

Listed under CAS 42729-95-3, 4-Hydroxybutyl Methanesulfonate is a metabolite or degradation product of Busulfan available from Vaqora Chemicals. Formula C5H12O4S, molecular weight 168.21 g/mol. It is also known as 4-Methanesulfonyloxybutanol or 1,4-Butanediolmonomethylsulfonsaeure ester.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. It carries the GHS signal word “Danger” with 9 hazard statements. Review the Safety Data Sheet before use.

It is used in metabolite identification, stability-indicating method development and impurity profiling of Busulfan, as well as in QC testing and ANDA/DMF documentation. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

  • Metabolite identification
  • Stability-indicating methods
  • Impurity profiling

Industries

Related to Busulfan

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

Busulfan impurities

Specifications & identifiers

Chemical identifiers
Product name4-Hydroxybutyl Methanesulfonate
Catalogue No.VQ-024705
CAS Number42729-95-3
IUPAC name4-hydroxybutyl methanesulfonate
Molecular formulaC5H12O4S
Molecular weight168.21 g/mol
Exact mass168.0456
GradeReference Standard
HSN code38229090
InChIKeyGGASLDTWAZHIGF-UHFFFAOYSA-N
SMILESCS(=O)(=O)OCCCCO
PubChem CID39244
Physical properties
Physical formSolid
LogP (XLogP3)-0.6
H-bond donors / acceptors1 / 4
TPSA72 Ų

Safety & hazard information (GHS)

GHS06 Toxic
Toxic
GHS08 Health hazard
Health hazard

Signal word: Danger

Hazard statements

  • H301Toxic if swallowed
  • H311Toxic in contact with skin
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H331Toxic if inhaled
  • H335May cause respiratory irritation
  • H340May cause genetic defects
  • H350May cause cancer
  • H361Suspected of damaging fertility or the unborn child

Precautionary statements: P203, P261, P262, P264, P264 + P265, P270, P271, P280, P301 + P316, P302 + P352, P304 + P340, P305 + P351 + P338, P316, P318, P319, P321, P330, P332 + P317, P337 + P317, P361 + P364, 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 4-Hydroxybutyl Methanesulfonate?

The CAS Registry Number of 4-Hydroxybutyl Methanesulfonate is 42729-95-3. It is also known as 4-Methanesulfonyloxybutanol, 1,4-Butanediolmonomethylsulfonsaeure ester, 4-methanesulfonyloxy-butanol.

What is the molecular formula and molecular weight of 4-Hydroxybutyl Methanesulfonate?

4-Hydroxybutyl Methanesulfonate has the molecular formula C5H12O4S and a molecular weight of 168.21 g/mol. Its IUPAC name is 4-hydroxybutyl methanesulfonate.

What is 4-Hydroxybutyl Methanesulfonate used for?

4-Hydroxybutyl Methanesulfonate is supplied as a characterised reference material related to Busulfan. 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-Hydroxybutyl Methanesulfonate can I order?

We supply 4-Hydroxybutyl Methanesulfonate 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-Hydroxybutyl Methanesulfonate?

Yes. Every lot of 4-Hydroxybutyl Methanesulfonate 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-Hydroxybutyl Methanesulfonate be shipped internationally?

Yes. 4-Hydroxybutyl Methanesulfonate 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 4-Hydroxybutyl Methanesulfonate

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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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