Pharm-Rx Lorazepam

Chemical Name: Lorazepam

CAS Number: 846-49-1

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    Enhanced TDS

    Identification & Functionality

    Chemical Name
    Molecular formula
    Chemical Structure

     - 1


    Lorazepam contains NLT 98.0% and NMT 102.0% of lorazepam (C₁₅H₁₀Cl₂N₂O₂), calculated on the dried basis.

    Applications & Uses


    Typical Properties
    ValueUnitsTest Method / Conditions
    Molecular Weight321.16

    Regulatory & Compliance

    USP Reference Standards
    • USP Lorazepam RS
    • USP Lorazepam Related Compound A RS 7-Chloro-5-(o-chlorophenyl)-1,3-dihydro-3-acetoxy-2H- 1,4-benzodiazepin-2-one. C17H12Cl2N2O3 363.20
    • USP Lorazepam Related Compound B RS 2-Amino-2′,5-dichlorobenzophenone. C₁₃H₉Cl₂NO - 266.12
    • USP Lorazepam Related Compound C RS 6-Chloro-4-(o-chlorophenyl)-2- quinazolinecarboxaldehyde. C₁₅H₈Cl₂N₂O 303.14
    • USP Lorazepam Related Compound D RS 6-Chloro-4-(o-chlorophenyl)-2- quinazolinecarboxylic acid. C₁₅H₈Cl2N₂O₂ 319.14
    • USP Lorazepam Related Compound E RS 6-Chloro-4-(o-chlorophenyl)-2-quinazoline methanol.

    Storage & Handling

    Storage Information

    Preserve in tight, light-resistant containers.