Butyl Methanesulfonate

About Butyl Methanesulfonate

Butyl Methanesulfonate is an impurity of Imatinib carrying the CAS registry number 1912-32-9. With the molecular formula C5H12O3S, it has a molar mass of 152.21 g/mol. Common synonyms include Methanesulfnoic acid n-butyl ester and Butyl mesylate.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

As a characterised impurity of Imatinib, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

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

Typical applications

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

Industries

Related to Imatinib

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

Imatinib impurities

Specifications & identifiers

Chemical identifiers
Product name	Butyl Methanesulfonate
Catalogue No.	VQ-023402
CAS Number	1912-32-9
IUPAC name	butyl methanesulfonate
Molecular formula	C₅H₁₂O₃S
Molecular weight	152.21 g/mol
Exact mass	152.0507
Grade	Reference Standard
HSN code	38229090
InChIKey	LFLBHTZRLVHUQC-UHFFFAOYSA-N
SMILES	CCCCOS(=O)(=O)C
PubChem CID	15953

Physical properties
Physical form	Solid
LogP (XLogP3)	0.9
H-bond donors / acceptors	0 / 3
TPSA	51.8 Å²
Synonyms	Methanesulfnoic acid n-butyl ester, Butyl mesylate, n-Butyl methanesulfonate, Butyl methanesulphonate, methyl butyl sulfonate, n-Butyl methanesulphonate, methanesulfonic acid n-butyl ester, n-butyl methanesulphonate, AldrichCPR, Methyl sulphonoxy butane, 1-methylsulfonyloxybutane, Methanesulfonic acid butyl ester, butyl methanesulfonat

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H317May cause an allergic skin reaction
H319Causes serious eye irritation

Precautionary statements: P261, P264, P264 + P265, P270, P272, P280, P301 + P317, P302 + P352, P305 + P351 + P338, P321, P330, P333 + P317, P337 + P317, P362 + P364, 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 Butyl Methanesulfonate?

The CAS Registry Number of Butyl Methanesulfonate is 1912-32-9. It is also known as Methanesulfnoic acid n-butyl ester, Butyl mesylate, n-Butyl methanesulfonate.

What is the molecular formula and molecular weight of Butyl Methanesulfonate?

Butyl Methanesulfonate has the molecular formula C5H12O3S and a molecular weight of 152.21 g/mol. Its IUPAC name is butyl methanesulfonate.

What is Butyl Methanesulfonate used for?

Butyl Methanesulfonate is supplied as a characterised reference material related to Imatinib. 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 Butyl Methanesulfonate can I order?

We supply Butyl 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 Butyl Methanesulfonate?

Yes. Every lot of Butyl 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 Butyl Methanesulfonate be shipped internationally?

Yes. Butyl 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.