Bromocriptine mesylate

Bromocriptine mesylate: ergot alkaloid derivative (dopamine agonist).

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

Structure

2D structure of Bromocriptine mesylate

Bromocriptine mesylate: 2D structure drawn from the PubChem record (CID 31100).

Compound data

CAS number

22260-51-1

Formula

C32H40BrN5O5 · CH4SO3

Molecular weight

750.70 g/mol

Type

Ergot alkaloid derivative (dopamine agonist)

Structure and names

Identity: Bromocriptine mesylate

IUPAC name: (6aR,9R)-5-bromo-N-[(1S,2S,4R,7S)-2-hydroxy-7-(2-methylpropyl)-5,8-dioxo-4-propan-2-yl-3-oxa-6,9-diazatricyclo[7.3.0.02,6]dodecan-4-yl]-7-methyl-6,6a,8,9-tetrahydro-4H-indolo[4,3-fg]quinoline-9-carboxamide;methanesulfonic acid

How Vanguard tests Bromocriptine mesylate

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 Bromocriptine Mesylate monograph covers identity by infrared and UV spectroscopy, assay by titration, related compounds by HPLC, methanesulfonic acid content by titration, residue on ignition, color, optical rotation and loss on drying. Full testing to the USP Bromocriptine Mesylate 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

$250

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

$200

Chromatographic purity on bulk powder. 50 mg.

Add-on tests

Add-on testPrice
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

  • Bromocriptine Mesylate (CAS 22260-51-1)
  • Tell us the salt or form the label states, so quantity is reported on the same basis.

Questions about Bromocriptine mesylate 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 Bromocriptine Mesylate monograph is available and quoted.

Is bromocriptine light sensitive?

Yes. Ergot-type alkaloids degrade in light and heat, so samples should be shipped in their original container, protected from light.

Why is the result tied to the mesylate salt?

The USP article is the mesylate, and the salt adds methanesulfonic acid to the weight. Quantity is reported as bromocriptine mesylate unless you ask for the free base.

Does bromocriptine contain bromine?

Yes. The bromine atom gives a distinctive two-peak isotope pattern in the mass spectrum, which helps confirm identity by LC-MS.

Sources

https://pubchem.ncbi.nlm.nih.gov/compound/31100

Identity facts from the USP monograph header for this compound.

Order

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