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API Impurities

Roflumilast Impurity B

Reference StandardAvailable on request

Order Roflumilast Impurity B (CAS 1391052-76-8) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Quotes within one business day.

Pack sizes
Roflumilast Impurity B chemical structure
CAS number1391052-76-8
FormulaC13H8Cl2F2N2O3
Molar mass349.11 g/mol
Physical formSolid
HS code38229090
InChIKeyGZHTYXYJBZYTEV-UHFFFAOYSA-N
IUPAC nameN-(3,5-dichloro-4-pyridinyl)-4-(difluoromethoxy)-3-hydroxybenzamide

About Roflumilast Impurity B

Zemixal lists Roflumilast Impurity B for laboratories that identify, quantify or control Roflumilast and its related substances. Identity at a glance (Reference Standard): CAS 1391052-76-8, formula C13H8Cl2F2N2O3 and molar mass 349.11 g/mol. It is handled as a solid.

Use cases we see most often

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Storage and safety notes

Classified under GHS with signal word Warning and hazard statements H315, H319 and H335. Read the SDS before first use.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. You receive a certificate of analysis with characterisation data with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Roflumilast

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

Roflumilast standards

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Roflumilast Impurity B
Product nameRoflumilast Impurity B
Catalogue numberZX-032275
CAS number1391052-76-8
IUPAC nameN-(3,5-dichloro-4-pyridinyl)-4-(difluoromethoxy)-3-hydroxybenzamide
Molecular formulaC13H8Cl2F2N2O3
Molar mass349.11 g/mol
Exact mass347.988
GradeReference Standard
Physical formSolid
XLogP33.5
H-bond donors / acceptors2 / 6
Topological polar surface area71.5 Ų
HS code38229090
InChIKeyGZHTYXYJBZYTEV-UHFFFAOYSA-N
SMILESC1=CC(=C(C=C1C(=O)NC2=C(C=NC=C2Cl)Cl)O)OC(F)F
PubChem CID66777253
Synonyms3-O-Decyclopropyl Roflumilast, Roflumilast Descyclopropylmethyl Impurity, Roflumilast Related Compound B, Roflumilast metabolite M05, Roflumilast Impurity E, N-(3,5-dichloropyridin-4-yl)-4-(difluoromethoxy)-3-hydroxybenzamide, Roflumilast Impurity Ii, 3-(Hydroxy)-N-(3,5-dichloro-4-pyridinyl)-4-(difluoromethoxy)benzamide, N-(3,5-dichloropyrid-4-yl)-4-difluoromethoxy-3-hydroxybenzamide

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 Roflumilast Impurity B
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 Roflumilast Impurity B

Which CAS number identifies Roflumilast Impurity B?
Roflumilast Impurity B is registered under CAS 1391052-76-8. You may also see it listed as 3-O-Decyclopropyl Roflumilast, Roflumilast Descyclopropylmethyl Impurity, Roflumilast Related Compound B. Our catalogue number for this item is ZX-032275.
What are the formula and molar mass of Roflumilast Impurity B?
For Roflumilast Impurity B, its formula is C13H8Cl2F2N2O3 and its molar mass is 349.11 g/mol. The systematic (IUPAC) name is N-(3,5-dichloro-4-pyridinyl)-4-(difluoromethoxy)-3-hydroxybenzamide. InChIKey GZHTYXYJBZYTEV-UHFFFAOYSA-N lets you match it in any structure database.
How is Roflumilast Impurity B used in pharmaceutical QC?
Roflumilast Impurity B is a characterised reference material linked to Roflumilast. 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 Roflumilast Impurity B?
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 Roflumilast Impurity B?
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 Roflumilast Impurity B to my country?
Yes. Because Roflumilast Impurity B 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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