Acamprosate calcium

Acamprosate calcium: taurine analog (acetylhomotaurinate salt).

Acamprosate calcium testing at Vanguard Laboratory: identity, purity and quantity $250 per sample, with results in 3 to 5 business days.

Structure

Acamprosate calcium: 2D structure drawn from the PubChem record (CID 155434).

Compound data

CAS number

77337-73-6

Formula

C₁₀H₂₀CaN₂O₈S₂

Molecular weight

400.48 g/mol

Type

Taurine analog (acetylhomotaurinate salt)

Structure and names

Identity: Acamprosate calcium

IUPAC name: calcium bis(3-acetamidopropane-1-sulfonate)

How Vanguard tests Acamprosate calcium

Method for the $250 identity, purity and quantity test: Chromatographic assay, with detection selected for the compound, against a reference standard, with results in 3 to 5 business days.

The USP monograph covers identity by infrared spectroscopy, HPLC retention time and a calcium test, assay by HPLC, acamprosate related compound A by HPLC after fluorescamine derivatization, organic impurities by HPLC, pH, and loss on drying. Full testing to the USP Acamprosate Calcium monograph is available and quoted.

What's reported

Purity, as percent of total peak area
Quantity, against the label claim
Identity, reported as match or no match against the reference standard
With monograph testing (quoted): the monograph’s tests against its limits

Tests and prices

Purity and quantity

$250

Chromatographic purity and mg per unit by the method matched to the compound, identity against a reference standard. 1 unit.

Raw powder purity

$200

Chromatographic purity on bulk powder. 50 mg.

Add-on tests

Add-on test	Price
Identity and impurities
FTIR identity	$90
CHNS elemental analysis (carbon, hydrogen, nitrogen, sulfur)	$125
Chiral purity (where a chiral method exists; new methods quoted)	$250
Water, solvents and salt form
Water content by Karl Fischer	$60
Residual solvents	$150
Counterions: chloride, acetate and TFA	$70
Assay
Assay, % w/w (with raw powder purity; $250 together)	+$50
Metals and conformity
Heavy metals: arsenic, cadmium, chromium, mercury and lead	$150
Conformity: purity and quantity on more units from the same lot	$100 per extra unit
Microbiology (injectables)
Endotoxin	$210
Sterility or bioburden	$150
Container closure integrity (CCI)	$50
Screening
Fentanyl screen	$50

10% off for 10 or more samples.

Need something else? Other tests are available on request.

Sample amount and turnaround

Purity and quantity is $250 per sample (1 unit) and raw powder purity is $200 for 50 mg, with results in 3 to 5 business days. Send the material sealed and labeled, with the label claim and the form it contains.

Salts, forms and compendial references

Acamprosate Calcium (CAS 77337-73-6)
Tell us the salt or form the label states, so quantity is reported on the same basis.

Questions about Acamprosate calcium testing

Is the $250 test the same as USP monograph testing?

No. The $250 test covers identity, purity and quantity by a chromatographic assay, with detection selected for the compound. Full testing to the USP Acamprosate Calcium monograph is available and quoted.

Why is acamprosate hard to detect by UV?

Acamprosate has no aromatic ring and almost no UV absorbance, so the lab uses a detection method suited to the compound.

Is calcium measured too?

The standard test measures the acamprosate part. Calcium content can be measured separately by ICP-MS if needed and is quoted with the job.

Sources

https://pubchem.ncbi.nlm.nih.gov/compound/155434

Identity facts from the USP monograph header for this compound.

Order

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