Atracurium besylate

Atracurium besylate: neuromuscular blocking agent (benzylisoquinolinium).

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

Structure

2D structure of Atracurium besylate

Atracurium besylate: 2D structure drawn from the PubChem record (CID 47320).

Compound data

CAS number

64228-81-5

Formula

C65H82N2O18S2

Molecular weight

1243.48 g/mol

Type

Neuromuscular blocking agent (benzylisoquinolinium)

Structure and names

Identity: Atracurium besylate

IUPAC name: benzenesulfonate;5-[3-[1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxy-2-methyl-3,4-dihydro-1H-isoquinolin-2-ium-2-yl]propanoyloxy]pentyl 3-[1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxy-2-methyl-3,4-dihydro-1H-isoquinolin-2-ium-2-yl]propanoate

How Vanguard tests Atracurium besylate

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 monograph covers identity by infrared spectroscopy and HPLC retention time, assay by HPLC, related compounds by HPLC, residue on ignition and water content. Full testing to the USP Atracurium Besylate 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

  • Atracurium Besylate (CAS 64228-81-5)
  • Tell us the salt or form the label states, so quantity is reported on the same basis.

Questions about Atracurium besylate 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 Atracurium Besylate monograph is available and quoted.

Why does atracurium show more than one main peak by HPLC?

Atracurium besylate is a mixture of stereoisomers, and they partly separate into a group of closely related peaks. The isomer group is treated as the main component, and other compounds are reported separately.

Does atracurium break down in storage?

Yes. It degrades at room temperature and at higher pH, and laudanosine is one of the main breakdown products. Samples should be shipped cold, and laudanosine shows up in the purity profile if it has formed.

Does the LC-MS identity check see the besylate?

LC-MS confirms the atracurium cation by its mass. Benzenesulfonate is the counter-ion and is accounted for in the quantity calculation when the label states the besylate salt.

Sources

https://pubchem.ncbi.nlm.nih.gov/compound/47320

Identity facts from the USP monograph header for this compound.

Order

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