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Pharmacopeial Impurities (EP / USP / BP)

Lorazepam EP Impurity E

Reference StandardAvailable on request

Order Lorazepam EP Impurity E (CAS 93955-15-8) online at Zemixal: C15H8Cl2N2O, COA and SDS with every lot, worldwide shipping.

Pack sizes
Lorazepam EP Impurity E chemical structure
CAS number93955-15-8
FormulaC15H8Cl2N2O
Molar mass303.1 g/mol
Physical formSolid
HS code38229090
InChIKeyVUUITUUENPOMIU-UHFFFAOYSA-N
IUPAC name6-chloro-4-(2-chlorophenyl)quinazoline-2-carbaldehyde

About Lorazepam EP Impurity E

Analytical teams working on Lorazepam use Lorazepam EP Impurity E as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 93955-15-8, formula C15H8Cl2N2O and molar mass 303.1 g/mol. It is handled as a solid.

Where it is used

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Storage and safety notes

It carries the GHS signal word Danger (H301, H319 and H413), so wear gloves and eye protection and work with good ventilation.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. Every shipment includes a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Lorazepam

See every impurity, metabolite and related compound we list for this API.

Lorazepam standards

Typical uses

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Lorazepam EP Impurity E
Product nameLorazepam EP Impurity E
Catalogue numberZX-030357
CAS number93955-15-8
IUPAC name6-chloro-4-(2-chlorophenyl)quinazoline-2-carbaldehyde
Molecular formulaC15H8Cl2N2O
Molar mass303.1 g/mol
Exact mass302.0014
GradeReference Standard
Physical formSolid
XLogP34.3
H-bond donors / acceptors0 / 3
Topological polar surface area42.9 Ų
HS code38229090
InChIKeyVUUITUUENPOMIU-UHFFFAOYSA-N
SMILESC1=CC=C(C(=C1)C2=NC(=NC3=C2C=C(C=C3)Cl)C=O)Cl
PubChem CID617488
SynonymsLorazepam - Impurity E, Lorazepam Related Compound C, 6-chloro-4-(2-chlorophenyl)-2-Quinazolinecarboxaldehyde, 6-Chloro-4-(o-chlorophenyl)-2-quinazolinecarboxaldehyde, 2-Quinazolinecarboxaldehyde, 6-chloro-4-(2-chlorophenyl)-, Lorazepam impurity E, 6-chloro-4-(2-chlorophenyl)quinazoline-2-carboxaldehyde, 6-Chloro-4-(2-chlorophenyl)-quinazoline-2-carbaldehyde, Lorazepam impurity C, 6-Chloro-4-(2-chlorophenyl)-2-quinazolinecarbaldehyde #, 6-chloro-4-(o-chlorophenyl)-quinazoline-2-carboxaldehyde

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS06 Acute toxicity
Acute toxicity
GHS07 Irritant or harmful
Irritant or harmful

Signal word Danger

  • H301Toxic if swallowed
  • H319Causes serious eye irritation
  • H413May cause long lasting harmful effects to aquatic life

Precautionary statements P264, P264 + P265, P270, P273, P280, P301 + P316, P305 + P351 + P338, P321, P330, P337 + P317, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Lorazepam EP Impurity E
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Lorazepam EP Impurity E

Which CAS number identifies Lorazepam EP Impurity E?
Lorazepam EP Impurity E is registered under CAS 93955-15-8. You may also see it listed as Lorazepam - Impurity E, Lorazepam Related Compound C, 6-chloro-4-(2-chlorophenyl)-2-Quinazolinecarboxaldehyde. Our catalogue number for this item is ZX-030357.
What are the formula and molar mass of Lorazepam EP Impurity E?
For Lorazepam EP Impurity E, its formula is C15H8Cl2N2O and its molar mass is 303.1 g/mol. The systematic (IUPAC) name is 6-chloro-4-(2-chlorophenyl)quinazoline-2-carbaldehyde. InChIKey VUUITUUENPOMIU-UHFFFAOYSA-N lets you match it in any structure database.
How is Lorazepam EP Impurity E used in pharmaceutical QC?
Lorazepam EP Impurity E is a characterised reference material linked to Lorazepam. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Lorazepam EP Impurity E?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Lorazepam EP Impurity E?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Lorazepam EP Impurity E to my country?
Yes. Because Lorazepam EP Impurity E is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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