Pravastatin sodium

Pravastatin sodium: statin (HMG-CoA reductase inhibitor).

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

Structure

Pravastatin sodium: 2D structure drawn from the PubChem record (CID 16759173).

Compound data

CAS number

81131-70-6

Formula

C₂₃H₃₅NaO₇

Molecular weight

446.52 g/mol

Type

Statin (HMG-CoA reductase inhibitor)

Structure and names

Identity: Pravastatin sodium

IUPAC name: sodium (3R,5R)-7-[(1S,2S,6S,8S,8aR)-6-hydroxy-2-methyl-8-[(2S)-2-methylbutanoyl]oxy-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]-3,5-dihydroxyheptanoate

How Vanguard tests Pravastatin sodium

Method for the $250 identity, purity and quantity test: HPLC-UV purity and assay, LC-MS identity, against a reference standard, with results in 3 to 5 business days.

The USP Pravastatin Sodium monograph covers identity by infrared spectroscopy, a sodium test and HPLC retention time, assay by HPLC, organic impurities by HPLC, an alcohol limit by GC, optical rotation, pH and water content. Full testing to the USP Pravastatin Sodium 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

Pravastatin Sodium (CAS 81131-70-6)
Tell us the salt or form the label states, so quantity is reported on the same basis.

Questions about Pravastatin sodium testing

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

No. The $250 test covers identity, purity and quantity by HPLC with UV detection for purity and assay, and LC-MS for identity. Full testing to the USP Pravastatin Sodium monograph is available and quoted.

Is pravastatin sodium hygroscopic?

Yes. It picks up moisture from the air, which lowers the assay on an as-is basis. Keep samples tightly sealed until shipping.

Can pravastatin be confused with its epimer?

Pravastatin has a closely related isomer, 6-epi-pravastatin, with the same mass. It is measured by HPLC retention time in the purity profile.

Sources

https://pubchem.ncbi.nlm.nih.gov/compound/16759173

Identity facts from the USP monograph header for this compound.

Order

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