Bis(4-Sulfobutyl)Ether Disodium

About Bis(4-Sulfobutyl)Ether Disodium

Bis(4-Sulfobutyl)Ether Disodium is an organosulfur compound carrying the CAS registry number 183278-30-0 at a purity of 95%. Its molecular formula is C8H16Na2O7S2 and its molecular weight is 334.3 g/mol. Its systematic (IUPAC) name is disodium, 4-(4-sulfonatobutoxy)butane-1-sulfonate. Common synonyms include WAS-18 and Sodium 4,4'-oxybis(butane-1-sulfonate).

Store sealed in a dry, well-ventilated location away from incompatible materials. Good laboratory practice and suitable PPE are recommended during handling.

It is commonly used for organic synthesis and API synthesis. 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. Stock is available for quick dispatch. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Bis(4-Sulfobutyl)Ether Disodium
Catalogue No.	VQ-010830
CAS Number	183278-30-0
Other CAS	61161-42-0
IUPAC name	disodium;4-(4-sulfonatobutoxy)butane-1-sulfonate
Molecular formula	C₈H₁₆Na₂O₇S₂
Molecular weight	334.3 g/mol
Exact mass	334.0133
Grade	Reference Standard
Purity / assay	95%
InChIKey	FMASHOOOLPDQTK-UHFFFAOYSA-L
SMILES	C(CCS(=O)(=O)[O-])COCCCCS(=O)(=O)[O-].[Na+].[Na+]
PubChem CID	71314120

Physical properties
Physical form	Other
H-bond donors / acceptors	0 / 7
TPSA	140 Å²
Synonyms	4,4'-Oxybis-1-butanesulfonic Acid Disodium Salt, WAS-18, 1-Butanesulfonic acid, 4,4'-oxybis-, disodium salt, Sodium 4,4'-oxybis(butane-1-sulfonate), Bis(4-sulfobutyl)ether Disodium Salt, 1-Butanesulfonic acid, 4,4'-oxybis-, disodium salt (9CI), Bis(4-sulfobutyl)ether Disodium (~90%), sodium 4-(4-sulfonatobutoxy)butane-1-sulfonate, disodium,4-(4-sulfonatobutoxy)butane-1-sulfonate, C8H16Na2O7S2, Sodium 4,4-oxybis(butane-1-sulfonate), Sodium4,4'-oxybis(butane-1-sulfonate)

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 Bis(4-Sulfobutyl)Ether Disodium?

The CAS Registry Number of Bis(4-Sulfobutyl)Ether Disodium is 183278-30-0. It is also known as 4,4'-Oxybis-1-butanesulfonic Acid Disodium Salt, WAS-18, 1-Butanesulfonic acid, 4,4'-oxybis-, disodium salt.

What is the molecular formula and molecular weight of Bis(4-Sulfobutyl)Ether Disodium?

Bis(4-Sulfobutyl)Ether Disodium has the molecular formula C8H16Na2O7S2 and a molecular weight of 334.3 g/mol.

Which grade and pack sizes of Bis(4-Sulfobutyl)Ether Disodium can I order?

We supply Bis(4-Sulfobutyl)Ether Disodium in Reference Standard (95%) grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Bis(4-Sulfobutyl)Ether Disodium?

Yes. Every lot of Bis(4-Sulfobutyl)Ether Disodium 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 Bis(4-Sulfobutyl)Ether Disodium be shipped internationally?

Yes. We export Bis(4-Sulfobutyl)Ether Disodium worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.