Ferrous fumarate

Ferrous fumarate: mineral salt (iron).

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

Structure

Ferrous fumarate: 2D structure drawn from the PubChem record (CID 6433164).

Compound data

CAS number

141-01-5

Formula

C₄H₂FeO₄

Molecular weight

169.90 g/mol

Type

Mineral salt (iron)

Structure and names

Identity: Ferrous fumarate

IUPAC name: (E)-but-2-enedioate;iron(2+)

How Vanguard tests Ferrous fumarate

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

The USP monograph covers identity by infrared spectroscopy and an iron test, assay by titration, ferric iron by titration, sulfate, arsenic, lead and mercury limits, and loss on drying. Full testing to the USP Ferrous Fumarate 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

Ferrous Fumarate (CAS 141-01-5)
Tell us the salt or form the label states, so quantity is reported on the same basis.

Questions about Ferrous fumarate testing

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

No. The $250 test covers identity, purity and quantity by ICP-MS for iron and HPLC for the fumarate. Full testing to the USP Ferrous Fumarate monograph is available and quoted.

Does the test separate ferrous from ferric iron?

No. ICP-MS measures total iron. Ferric iron, which forms when ferrous iron oxidizes, needs a separate titration that is part of the USP monograph.

How do iron salts compare on iron content?

Ferrous fumarate, ferrous sulfate, ferrous gluconate and iron bisglycinate carry different amounts of iron per gram, so the labeled form decides how the result is converted.

Sources

https://pubchem.ncbi.nlm.nih.gov/compound/6433164

Identity facts from the USP monograph header for this compound.

Order

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