1,4-Butanedisulfonic acid disodium salt

1,4-Butanedisulfonic Acid Disodium Salt for Intermediate Sourcing

1,4-Butanedisulfonic acid disodium salt, also called disodium butane-1,4-disulfonate, is supplied as a white powder for chemical intermediate sourcing and process-development evaluation. The supplied specification defines minimum content, maximum moisture and a bromide limit, allowing buyers to compare the material against their own process and quality requirements.

• Product identity: CAS No. 36589-61-4 identifies the disodium salt rather than the corresponding free acid.
• Content requirement: A minimum content of 99% is specified; the analytical method and reporting basis require confirmation.
• Impurity control: Moisture is limited to 2.0% maximum, with bromide below 20 ppm.
• Supply format: The stated packing is 25 kg per fiber drum, subject to confirmation of the current packaging specification.

Product Identification and Supplied Specifications

The following table combines chemical identification with the specifications provided for this product. Order acceptance should follow the agreed specification and current batch documentation.

Property	Identification or Supplied Specification
Product Name	1,4-Butanedisulfonic acid disodium salt
Alternative Name	Disodium butane-1,4-disulfonate
CAS No.	36589-61-4
Molecular Formula	C4H8Na2O6S2
Condensed Structural Formula	NaO3S(CH2)4SO3Na
Molecular Weight	262.22 g/mol, calculated for C4H8Na2O6S2
Appearance	White powder
Content	≥99%; analytical method and reporting basis to be confirmed
Moisture	≤2.0%
Bromide	<20 ppm
Standard Packing	25 kg fiber drum; current container and liner specification to be confirmed
Minimum Order Quantity	Confirmed against the requested quantity and supply availability
Lead Time	Confirmed according to stock or production availability, packaging and destination

The content value should not be interpreted as a complete impurity profile. Buyers requiring limits for additional substances or process-related impurities should identify those requirements before sample approval or order confirmation.

Quality Parameters That Matter in Intermediate Procurement

Confirm Salt Identity Before Comparing Offers

A quotation for the disodium salt should not be treated as equivalent to an offer for the free acid or another salt form. Product naming, CAS identification and composition need to match across the specification, sample label and supply documents.

• Identity alignment: Confirm CAS No. 36589-61-4 on the quotation and product documents.
• Composition review: Check that the stated formula refers to the disodium salt.
• Process suitability: Assess the sodium-containing material against the intended reaction or formulation requirements.

Interpret Content and Moisture Together

The supplied specification includes both a content limit and a moisture limit. Their interpretation depends on the analytical method and whether content is reported on an as-received, dry or other defined basis. Buyers should resolve this point before comparing results from different sources.

• Content basis: Confirm how the minimum 99% value is calculated and reported.
• Moisture method: Identify the measurement method used for the maximum 2.0% limit.
• Process calculations: Use the agreed reporting basis when determining material charges or comparing batches.

Review Bromide Against the Required Acceptance Limit

The supplied bromide specification is below 20 ppm. Buyers should verify the method and reporting limit when this parameter forms part of their raw-material approval criteria. A result reported only as below a detection or quantification limit is useful only if that limit is appropriate for the purchasing specification.

• Parameter definition: Confirm that the limit applies to bromide rather than an unspecified total bromine measurement.
• Method suitability: Check that the analytical method can assess the required concentration range.
• Batch review: Compare the reported result with the agreed acceptance criteria before release for use.

Application Scope and Intended Buyers

This product is offered for intermediate and specialty chemical evaluation. The intended use should be described during qualification so that the buyer can determine whether the supplied grade and documentation meet the project requirements.

Pharmaceutical Intermediate Evaluation

Process-development teams and qualified intermediate buyers may assess this material for a defined pharmaceutical manufacturing route. Approval depends on the buyer's process requirements, analytical controls and applicable quality expectations. The stated specification does not by itself establish pharmaceutical grade, pharmacopoeial compliance or suitability for direct medicinal use.

• Typical buyers: Intermediate manufacturers, pharmaceutical process-development teams and qualified raw-material distributors.
• Qualification focus: Identity, content, moisture, bromide and any additional route-specific impurity limits.
• Required decision: Determine whether the available material and documentation are sufficient for the intended manufacturing stage.

Specialty Chemical Development

Specialty chemical manufacturers may review the material for a defined development or processing purpose. Any proposed formulation role should be demonstrated through relevant testing rather than inferred from the chemical name or a broad application label.

• Typical buyers: Chemical synthesis laboratories, specialty chemical manufacturers and technical distributors.
• Qualification focus: Reaction compatibility, analytical acceptance criteria, handling requirements and material consistency.
• Application boundary: No universal surfactant performance, recommended dosage or finished-product benefit is claimed on this page.

Standard Packing and Order-Specific Requirements

Zhufeng Chem reviews supply requests against the defined chemical specification and available packaging arrangements. This is a standard chemical material rather than a product with automatically customizable composition.

• Standard pack: The stated packing is a 25 kg fiber drum; container construction and liner details require confirmation.
• Alternative packing: Requests for different pack weights or containers are subject to feasibility and order conditions.
• Label requirements: Buyers may submit required order references or label language for review, without removing mandatory safety or traceability information.
• Additional testing: Tighter moisture or bromide limits, a different content method or extra impurity tests require separate confirmation.
• Samples and documents: Availability, evaluation quantity, charges and the scope of COA, TDS or SDS support are confirmed for the inquiry.

Storage conditions, handling precautions and transport information should be taken from the current product-specific SDS and label rather than inferred from the powder appearance or packaging size.

Typical Procurement Scenario for Intermediate Qualification

This illustrative scenario describes a raw-material qualification process. It is not a reported transaction or evidence of an approved pharmaceutical application.

Buyer Requirement: A process-development buyer evaluating the disodium salt for an intermediate project would need to compare the minimum content, moisture limit and bromide requirement with an internal raw-material specification. The buyer would also need to establish whether the analytical methods and reporting basis allow meaningful comparison with existing laboratory data.

Solution: In this scenario, Zhufeng Chem would review the requested specification, quantity, packaging and documentation needs before confirming a potential supply arrangement. The buyer would examine the available product documents and, if a sample were agreed, perform identity and quality checks together with process-compatibility testing. Any additional impurity limits would be agreed separately rather than assumed from the content value.

Result: The intended outcome would be a documented decision on whether the material meets the buyer's qualification criteria. Acceptance, further testing or rejection would depend on the actual analytical results and process review, not solely on the website specification.

Frequently Asked Questions About This Disodium Salt

What identifies 1,4-butanedisulfonic acid disodium salt?

The product is identified by CAS No. 36589-61-4 and molecular formula C4H8Na2O6S2. Disodium butane-1,4-disulfonate is an alternative name. Check these identifiers when comparing specifications and supply documents.

What is the minimum content?

The supplied specification states a minimum content of 99%. The analytical method and reporting basis should be confirmed before the material is approved against a purchasing specification.

What are the moisture and bromide limits?

The stated limits are moisture at or below 2.0% and bromide below 20 ppm. Buyers should confirm the applicable methods and current batch results where these parameters are critical to the intended process.

Does pharmaceutical intermediate use mean pharmaceutical grade?

No. A proposed intermediate use does not establish pharmaceutical grade, pharmacopoeial compliance or suitability for direct administration. The buyer needs to qualify the supplied grade for the specific manufacturing route and stage.

Can the product be purchased against tighter limits?

Zhufeng Chem can review requests for additional testing or different acceptance limits. Feasibility, analytical capability, availability and commercial conditions require confirmation before any nonstandard specification is agreed.

What packaging is specified?

The stated packing is 25 kg in a fiber drum. Buyers should confirm the actual container, liner and labeling details, especially where their receiving or handling procedures require a particular packaging format.

What are the MOQ, sample conditions and lead time?

Zhufeng Chem confirms these details for each inquiry according to requested quantity, material availability, packaging and destination. No fixed sample quantity, free-sample policy or delivery period is assumed.

Zhufeng Chem Support for Intermediate Material Review

Wuxi Zhufeng Fine Chemical Co., Ltd. supplies specialty chemical materials and includes this disodium salt in its intermediate product range. For this product, Zhufeng Chem reviews specification, documentation and packaging requests to support the buyer's raw-material assessment. Availability and any additional testing or supply conditions are confirmed for the individual inquiry.

Prepare a Product Specification and Quotation Inquiry

The following details help Zhufeng Chem assess the requested material and prepare relevant supply information through the existing inquiry form:

• Required quantity and intended application or manufacturing stage.
• Required content, moisture and bromide limits, including any specified analytical methods or additional impurity requirements.
• Preferred packaging, destination country or port and required delivery timing.
• Required documentation and whether an evaluation sample is needed.