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Lorazepam-d4 (Synonyms: Apo-Lorazepam-d4)

Catalog No.GC91682 Copy One-Click Copy Product Info

Lorazepam-d4 is intended for use as an internal standard for the quantification of lorazepam .

Products are for research use only. Not for human use. We do not sell to patients.

Lorazepam-d4 Chemical Structure

Cas No.: 84344-15-0

Size Price Stock Qty
1 mg
$185.00
In stock

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Sample solution is provided at 25 µL, 10mM.



Description of Lorazepam-d4

Lorazepam-d4 is intended for use as an internal standard for the quantification of lorazepam .2,3 Formulations containing lorazepam have been used in the treatment of anxiety. Lorazepam-d4 is regulated as a Schedule IV compound in the United States. This product is intended for research and forensic applications.

References:
[1].Miller, L.G., Greenblatt, D.J., Barnhill, J.G., et al.Chronic benzodiazepine administration. I. Tolerance is associated with benzodiazepine receptor downregulation and decreased γ-aminobutyric acidA receptor functionJ. Pharmacol. Exp. Ther.246(1)170-176(1988).
[2].Baldwin, D., Woods, R., Lawson, R., et al.Efficacy of drug treatments for generalised anxiety disorder: Systematic review and meta-analysisBMJ342d1199(2011).
[3].Moosmann, B., Bisel, P., and Auwärter, V.Characterization of the designer benzodiazepine diclazepam and preliminary data on its metabolism and pharmacokineticsDrug Test Anal.6(7-8)757-763(2014).

Chemical Properties of Lorazepam-d4

Cas No. 84344-15-0 SDF
Synonyms Apo-Lorazepam-d4
Formula C15H6Cl2D4N2O2 M.Wt 325.2
Solubility DMSO: Soluble: ≥10 mg/ml,Ethanol: Sparingly soluble: 1-10 mg/ml Storage -20°C
General tips Please select the appropriate solvent to prepare the stock solution according to the solubility of the product in different solvents; once the solution is prepared, please store it in separate packages to avoid product failure caused by repeated freezing and thawing.Storage method and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored at -20°C, please use it within 1 month.
To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time.
Shipping Condition Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request.

Complete Stock Solution Preparation Table of Lorazepam-d4

Prepare stock solution
1 mg 5 mg 10 mg
1 mM 3.075 mL 15.3752 mL 30.7503 mL
5 mM 615 μL 3.075 mL 6.1501 mL
10 mM 307.5 μL 1.5375 mL 3.075 mL
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**When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / CoA (available online).

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In vivo Formulation Calculator (Clear solution) of Lorazepam-d4

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

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Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

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Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL saline, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.

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