Methanesulfonic anhydride CAS:7143-01-3

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1 Kilogram	FOB Price: USD 1.0000

1 Kilogram

FOB Price: USD 1.0000

Methanesulfonic anhydride methylsulfonyl methanesulfonate CAS:7143-01-3

CAS No: 7143-01-3

Product name: Methanesulfonic anhydride

Appearance: White crystalline powder

Purity: 99%+

Color: White

Shelf life: Two years

EINECS NO: 230-442-1

Molecular Formula: C2H6O5S2

Molecular Weight: 174.19

Item	Standard	Test Results
Identification	A.H-NMR:Comply with the structure	Complies
	B.LC-MS:Comply with the structure	Complies
	C.The IR spectrum of sample should be identical with that of reference standard.	Complies
	D.HPLC-ESI-MS The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay.	Complies
Loss on drying	≤2.0%	0.19%
Heavy metals	≤10 ppm	<10ppm
Water	≤1.0%	0.1%
Sulphated ash	≤0.5% determined on 1.0 g.	0.009%
Residue on ignition	≤0.1%	0.03%
Related Substances	Unspecified impurities: for each impurity ≤0.10%	<0.10%
Related Substances	Total Impurity ≤0.5%	0.18%
Purity	≥99.0%	99.7%
Assay	99.0%~101.0% (anhydrous substance).	99.8%
Storage	Preserve in well-closed, light-resistant and airtight containers.	Complies