Bismuth Citrate CAS 813-93-4: Identity and Sourcing

Bismuth citrate is identified by CAS 813-93-4. PubChem CID 13135 reports molecular formula C₆H₅BiO₇ and molecular weight 398.08 g/mol. The CAS number helps identify the substance, but it does not define a commercial grade, analytical method, regulatory status or document package.

Check the identity · Review source-record specifications · Prepare an RFQ

Bismuth citrate identity at a glance

External identity reference: PubChem CID 13135. Commercial decisions must use the current supplier documents for the quoted material.

What does the Longchang source record contain?

The existing product record lists infrared identification, two additional identification checks, nitrate, arsenic, loss on drying, copper, lead, silver and bismuth assay on a dried basis. Its bismuth range is 49%–54%. These fields are historical website records, not a current-lot COA or an implied compendial claim.

Several legacy acceptance descriptions say only that a test “should meet request.” That wording does not define a method, unit or limit. Buyers should obtain the current specification and resolve every ambiguous entry before using it in a supplier-approval protocol.

How should properties and intended applications be evaluated?

Translate the intended application into measurable identity, composition, impurity, physical-property, documentation, packaging and regulatory requirements. Do not infer suitability, approval, food status, pharmaceutical grade or finished-product performance from the chemical name or from a general applications article.

This page does not provide treatment, dosage, administration, interaction, contraindication or patient-safety advice. It is a raw-material sourcing guide and is not a substitute for an authorized finished-product label, a current SDS or qualified regulatory review.

Documents to request

• current specification with revision, test methods, units and reporting basis;
• representative or current-lot COA, as applicable;
• current SDS and any available TDS;
• origin, packaging, labeling and change-control information required by the qualification process;
• sample terms and any supplier questionnaire required before evaluation.

Safety and storage boundary

Use the current supplier SDS and a site-specific risk assessment to select engineering controls, personal protective equipment, storage, transport and disposal procedures. The source record describes cool, dry storage; confirm the current storage statement, shelf-life or retest information and packaging before ordering.

Bismuth citrate RFQ checklist

• product name and CAS 813-93-4;
• required grade, specification revision and intended technical use;
• bismuth assay basis, impurity limits and analytical methods;
• target quantity, order frequency and destination;
• packaging, labeling and document requirements;
• sample quantity and evaluation purpose, if required.

Review the Longchang Bismuth Citrate CAS 813-93-4 product record, then email the specification, quantity, destination and document list to info@longchangchemical.com. Longchang will confirm the supported material, available documents and commercial terms for the inquiry.

Frequently asked questions

What is the formula of bismuth citrate CAS 813-93-4?

PubChem CID 13135 reports C₆H₅BiO₇ and molecular weight 398.08 g/mol. The legacy Longchang record rounds the molecular weight to 398.09.

Does CAS 813-93-4 define the grade?

No. The CAS number identifies the substance, while grade, assay basis, impurity limits, test methods and required documents must be defined in the approved specification and purchase agreement.