Manganese gluconate

Manganese gluconate: mineral salt (manganese).

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

Structure

Manganese gluconate: 2D structure drawn from the PubChem record (CID 22988).

Compound data

CAS number

6485-39-8

Formula

C₁₂H₂₂MnO₁₄

Molecular weight

445.23 g/mol

Type

Mineral salt (manganese)

Structure and names

Identity: Manganese gluconate (anhydrous)

IUPAC name: manganese(2+);bis((2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanoate)

How Vanguard tests Manganese gluconate

Method for the $250 identity, purity and quantity test: ICP-MS metal content, HPLC assay of the gluconate counter-ion, against a reference standard, with results in 3 to 5 business days.

The USP monograph covers identity by a manganese test and TLC, assay by titration, chloride and sulfate limits, lead by atomic absorption, reducing substances by titration, and water content. Full testing to the USP Manganese Gluconate monograph is available and quoted.

What's reported

Metal content by ICP-MS, against the label or specification
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

Manganese Gluconate (CAS 6485-39-8)
Tell us the salt or form the label states, so quantity is reported on the same basis.

Questions about Manganese gluconate testing

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

No. The $250 test covers identity, purity and quantity by ICP-MS for manganese and HPLC for the gluconate. Full testing to the USP Manganese Gluconate monograph is available and quoted.

Is my manganese gluconate anhydrous or the dihydrate?

Both are sold, and the USP assay is calculated on the anhydrous basis. Water content is measured so the result can be stated for the labeled form.

Is manganese reported as elemental manganese?

Labels usually state elemental manganese. ICP-MS measures it directly, and the result can be converted to manganese gluconate.

Sources

https://pubchem.ncbi.nlm.nih.gov/compound/22988

Identity facts from the USP monograph header for this compound.

Order

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