Quick Answer: When buying sodium taurodeoxycholate (CAS 1180-95-6), match CAS and structure, specify HPLC purity (≥97–98% common for research), clarify hydrate vs anhydrous on the COA, and request lot COA with identity, water content, and retest date. Compare pack size (50 g–25 kg) to annual usage; plan moisture-safe handling before first use.
Identity: CAS and Synonyms
Procurement systems should anchor on CAS 1180-95-6. Acceptable catalog names include sodium taurodeoxycholate, taurodeoxycholic acid sodium salt, and STDC. Reject look-alikes with different CAS (e.g., unconjugated deoxycholate salts).
| Listing name | Buy if… | Reject if… |
|---|---|---|
| Sodium taurodeoxycholate | CAS 1180-95-6 on COA | CAS mismatch |
| Sodium taurodeoxycholate hydrate | Formula weight reflects hydration | Anhydrous FW assumed incorrectly |
| Sodium deoxytaurocholate | Structure confirmed as STDC | Different salt or conjugation |
| Sodium taurocholate | You intended trihydroxy conjugate | Substituted unintentionally for STDC |
Purity Grades
| Grade (typical) | HPLC purity | Common use |
|---|---|---|
| Standard / biochemical | ≥95% | General R&D, method development |
| Research | ≥97–98% | Membrane protein & cell biology |
| High purity / pharma research | ≥99% | Sensitive assays, regulatory-adjacent R&D |
| Cell culture tested | Specified + endotoxin/sterility data | Cell-based workflows |
Technical comparison of COA lines: Specs Buyers Ask for CAS 1180-95-6.
Hydrate vs Anhydrous
Catalogs may sell hydrate forms with bound water in the solid. This is not a defect if disclosed — but it changes formula weight and therefore mass-to-moles conversion. Always record which form your SOP assumes.
- Request water content or molecular weight on COA
- Update LIMS formula weight when lot changes
- Do not interchange hydrate and anhydrous lots without recalculation
COA Must-Haves
| COA line item | Why purchasing / QA cares |
|---|---|
| CAS & product name | Identity audit |
| HPLC purity | Batch release spec |
| Formula weight / hydration | Correct molarity from mass |
| Optical rotation (where listed) | Secondary identity check |
| Appearance | White to off-white powder expected |
| Storage & retest date | Inventory shelf life |
| SDS version | EHS compliance |
Packaging & MOQ
Typical packs: 50 g / 100 g / 500 g bottles; 1–25 kg drums for bulk. Minimum order quantity (MOQ) starts at 50 g. Paid evaluation quantities can be arranged on quotation — not free samples. Request pack options and pricing via Sodium Taurodeoxycholate / Taurodeoxycholic acid sodium salt (CAS 1180-95-6) or Contact.
Vendor Qualification Tips
- Ask for previous COA example before first PO
- Confirm country of origin and export paperwork if needed
- Align spec with intended use (membrane protein vs cell signaling)
- Plan linked articles for onboarding: Storage, Solution Prep, Concentrations
FAQ
Is ≥95% pure enough?
For many biochemical workflows, yes. Membrane protein or sensitive assays often warrant ≥97–98% or higher.
Should I buy hydrate or anhydrous?
Buy what your method documents — then use the COA formula weight. Both can work if handled consistently.
What is the HS code?
Suppliers often list 2924.29 for bile acid derivatives — confirm on invoice for customs.
Can I switch suppliers mid-study?
Yes with bridging data: compare COA, re-run pilot solubilization, update lot records.
Related Resources
- Sodium Taurodeoxycholate / Taurodeoxycholic acid sodium salt (CAS 1180-95-6)
- Specs Buyers Ask
- Storage & Moisture
- What Is STDC?
- STDC vs Taurocholate
- Contact for quote
Disclaimer
This article is for research and laboratory use information only. It does not constitute medical, diagnostic, or therapeutic advice. Verify all concentrations, grades, and handling steps against your institution’s SOP, SDS, and primary literature before use in regulated or clinical-adjacent workflows.