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Pharmacopeial Impurities (EP / USP / BP)

Risedronate EP Impurity B

Reference StandardAvailable on request

Order Risedronate EP Impurity B (CAS 105462-23-5) online at Zemixal. Request a quote with price, lead time and documents.

Pack sizes
Risedronate EP Impurity B chemical structure
CAS number105462-23-5
FormulaC7H11NO7P2
Molar mass283.11 g/mol
Physical formSolid
HS code38229090
InChIKeyXXNASZAYANFLID-UHFFFAOYSA-N
IUPAC name(1-hydroxy-1-phosphono-2-pyridin-2-ylethyl)phosphonic acid

About Risedronate EP Impurity B

Zemixal lists Risedronate EP Impurity B for laboratories that identify, quantify or control Risedronate and its related substances. Identity at a glance (Reference Standard): CAS 105462-23-5, formula C7H11NO7P2 and molar mass 283.11 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Storage and safety notes

Hazard communication follows GHS (Danger: H317 and H334). Our SDS lists exposure controls and first-aid measures.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. 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 Risedronate

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

Risedronate 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 Risedronate EP Impurity B
Product nameRisedronate EP Impurity B
Catalogue numberZX-022661
CAS number105462-23-5
IUPAC name(1-hydroxy-1-phosphono-2-pyridin-2-ylethyl)phosphonic acid
Molecular formulaC7H11NO7P2
Molar mass283.11 g/mol
Exact mass283.0011
GradeReference Standard
Physical formSolid
XLogP3-3.1
H-bond donors / acceptors5 / 8
Topological polar surface area148 Ų
HS code38229090
InChIKeyXXNASZAYANFLID-UHFFFAOYSA-N
SMILESC1=CC=NC(=C1)CC(O)(P(=O)(O)O)P(=O)(O)O
PubChem CID405372
SynonymsRisedronate Related Compound A, Risedronate Sodium - Impurity B, Risedronate 2-pyridinyl isomer, (1-Hydroxy-2-(pyridin-2-yl)ethylidene)bis(phosphonic acid), [1-hydroxy-1-phosphono-2-(pyridin-2-yl)ethyl]phosphonic acid, Phosphonic acid, P,P'-(1-hydroxy-2-(2-pyridinyl)ethylidene)bis-, (1-hydroxy-1-phosphono-2-(pyridin-2-yl)ethyl)phosphonic acid, Risedronate sodium 2.5-hydrate impurity B, 1-Hydroxy-2-(2-pyridinyl) Risedronate, [1-hydroxy-2-(2-pyridinyl)ethylidene]bis(phosphonic acid), [1-Hydroxy-2-(2-pyridinyl)ethylidene]bis[phosphonic acid], 2-(2-Hydroxy-2,2-bis-phosphono-ethyl)-pyridinium

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

Safety and GHS hazards

GHS08 Health hazard
Health hazard

Signal word Danger

  • H317May cause an allergic skin reaction
  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

Precautionary statements P233, P260, P261, P271, P272, P280, P284, P302 + P352, P304 + P340, P321, P333 + P317, P342 + P316, P362 + P364, P403, 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 Risedronate EP 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 Risedronate EP Impurity B

Which CAS number identifies Risedronate EP Impurity B?
Risedronate EP Impurity B is registered under CAS 105462-23-5. You may also see it listed as Risedronate Related Compound A, Risedronate Sodium - Impurity B, Risedronate 2-pyridinyl isomer. Our catalogue number for this item is ZX-022661.
What are the formula and molar mass of Risedronate EP Impurity B?
For Risedronate EP Impurity B, its formula is C7H11NO7P2 and its molar mass is 283.11 g/mol. The systematic (IUPAC) name is (1-hydroxy-1-phosphono-2-pyridin-2-ylethyl)phosphonic acid. InChIKey XXNASZAYANFLID-UHFFFAOYSA-N lets you match it in any structure database.
How is Risedronate EP Impurity B used in pharmaceutical QC?
Risedronate EP Impurity B is a characterised reference material linked to Risedronate. 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 Risedronate EP 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 Risedronate EP 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 Risedronate EP Impurity B to my country?
Yes. Because Risedronate EP 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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