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Pharmacopeial Impurities (EP / USP / BP)

Diltiazem EP Impurity E

Reference StandardIn stock

Order Diltiazem EP Impurity E (CAS 42399-49-5) online at Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes
Diltiazem EP Impurity E chemical structure
CAS number42399-49-5
FormulaC16H15NO3S
Molar mass301.4 g/mol
Physical formSolid
HS code38229090
Purity99.7%
InChIKeyLHBHZALHFIQJGJ-CABCVRRESA-N
IUPAC name(2S,3S)-3-hydroxy-2-(4-methoxyphenyl)-3,5-dihydro-2H-1,5-benzothiazepin-4-one

About Diltiazem EP Impurity E

Analytical teams working on Diltiazem use Diltiazem EP Impurity E as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 42399-49-5, formula C16H15NO3S and molar mass 301.4 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

Hazard communication follows GHS (Warning: H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg, 100 mg and 250 mg. Larger or split packs can be arranged. Every shipment includes a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Diltiazem

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

Diltiazem standards

Typical uses

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

Applications

Grade guides

Specifications and identifiers

Specifications of Diltiazem EP Impurity E
Product nameDiltiazem EP Impurity E
Catalogue numberZX-005661
CAS number42399-49-5
IUPAC name(2S,3S)-3-hydroxy-2-(4-methoxyphenyl)-3,5-dihydro-2H-1,5-benzothiazepin-4-one
Molecular formulaC16H15NO3S
Molar mass301.4 g/mol
Exact mass301.0773
GradeReference Standard
Purity / assay99.7%
Physical formSolid
XLogP32.3
H-bond donors / acceptors2 / 4
Topological polar surface area83.9 Ų
HS code38229090
InChIKeyLHBHZALHFIQJGJ-CABCVRRESA-N
SMILESCOC1=CC=C(C=C1)[C@H]2[C@H](C(=O)NC3=CC=CC=C3S2)O
PubChem CID2733673
Synonyms(2S,3S)-2,3-Dihydro-3-hydroxy-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one, (2S-cis)-2,3-Dihydro-3-hydroxy-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one, (2S,3S)-3-Hydroxy-2-(4-methoxyphenyl)-2,3-dihydro-1,5-benzothiazepin-4(5H)-one, Cis-Hydroxy Lactam Diltiazem, Des[3-Acetyl-5-(2-dimethylamino)ethyl] Diltiazem, 1,5-Benzothiazepin-4(5H)-one, 2,3-dihydro-3-hydroxy-2-(4-methoxyphenyl)-, (2S-cis)-, 3-Hydroxy-2-(4-methoxyphenyl)-2,3-dihydro-1,5-benzothiazepin-4(5H)-one, (2S,3S)-, (2S-cis)-(+)-2,3-Dihydro-3-hydroxy-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one, (2S,3S)-(+)-2,3-Dihydro-3-hydroxy-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one, (2S,3S)-3-hydroxy-2-(4-methoxyphenyl)-2,3,4,5-tetrahydro-1,5-benzothiazepin-4-one, 3-hydroxy-2-(4-methoxyphenyl)-2,3-dihydro-1,5-benzothiazepin-4(5H)-one, (2S-cis)-(+)-2,3-Dihydro-3-hydroxy-2-(4-methoxyphenyl)-1,5-ben

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, 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 Diltiazem EP Impurity E
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 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 Diltiazem EP Impurity E

Which CAS number identifies Diltiazem EP Impurity E?
Diltiazem EP Impurity E is registered under CAS 42399-49-5. You may also see it listed as (2S,3S)-2,3-Dihydro-3-hydroxy-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one, (2S-cis)-2,3-Dihydro-3-hydroxy-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one, (2S,3S)-3-Hydroxy-2-(4-methoxyphenyl)-2,3-dihydro-1,5-benzothiazepin-4(5H)-one. Our catalogue number for this item is ZX-005661.
What are the formula and molar mass of Diltiazem EP Impurity E?
For Diltiazem EP Impurity E, its formula is C16H15NO3S and its molar mass is 301.4 g/mol. The systematic (IUPAC) name is (2S,3S)-3-hydroxy-2-(4-methoxyphenyl)-3,5-dihydro-2H-1,5-benzothiazepin-4-one. InChIKey LHBHZALHFIQJGJ-CABCVRRESA-N lets you match it in any structure database.
How is Diltiazem EP Impurity E used in pharmaceutical QC?
Diltiazem EP Impurity E is a characterised reference material linked to Diltiazem. 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 Diltiazem EP Impurity E?
This listing is Reference Standard grade with 99.7% purity. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Diltiazem 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 Diltiazem EP Impurity E to my country?
Yes. Because Diltiazem 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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