[1-hydroxy-2-(2-pyridinyl)ethylidene]bis(phosphonic acid)

Product Name: [1-hydroxy-2-(2-pyridinyl)ethylidene]bis(phosphonic acid)
CAS No.: 105462-23-5
Chemical Name: [1-hydroxy-2-(2-pyridinyl)ethylidene]bis(phosphonic acid)
Synonyms: NE 58018;Risedronate EP Impurity B;Risedronate Related CoMpound A;Risedronate USP Related Compound A;[1-Hydroxy-2-(pyridin-2-yl)ethylide;Risedronate sodium 2.5-hydrate EP Impurity B;Risedronate Impurity 2（Risedronate EP Impurity B）;[1-hydroxy-2-(2-pyridinyl)ethylidene]bis(phosphonic acid);Risedronate EP Impurity B/ Risedronate Related Compound A;(1-hydroxy-1-phosphono-2-pyridin-2-ylethyl)phosphonic acid
CBNumber: CB42539429
Molecular Formula: C7H11NO7P2
Formula Weight: 283.11
MOL File: 105462-23-5.mol

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[1-hydroxy-2-(2-pyridinyl)ethylidene]bis(phosphonic acid) Property

storage temp.: 2-30°C
solubility: Aqueous Base (Slightly), Methanol (Slightly)
BRN: 8151626
Stability:: Hygroscopic
Major Application: pharmaceutical small molecule
InChI: 1S/C7H11NO7P2/c9-7(16(10,11)12,17(13,14)15)5-6-3-1-2-4-8-6/h1-4,9H,5H2,(H2,10,11,12)(H2,13,14,15)
InChIKey: XXNASZAYANFLID-UHFFFAOYSA-N
SMILES: [P](=O)(O)(O)C([P](=O)(O)O)(O)Cc1ncccc1

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Safety

Hazard Codes: Xi
Risk Statements: 42/43
Safety Statements: 36/37
WGK Germany: WGK 3
HS Code: 2933399090
Storage Class: 11 - Combustible Solids
Hazard Classifications: Resp. Sens. 1
Skin Sens. 1

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H317May cause an allergic skin reaction

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P284Wear respiratory protection.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P342+P311IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: PHR2075
Product name: Risedronate Related Compound A
Purity: Pharmaceutical Secondary Standard; Certified Reference Material
Packaging: 50mg
Price: $440.3
Updated: 2025/07/31

Sigma-Aldrich

Product number: 1604621
Product name: Risedronate Related Compound A
Purity: United States Pharmacopeia (USP) Reference Standard
Packaging: 20mg
Price: $1200
Updated: 2025/07/31

TRC

Product number: H952810
Product name: 1-Hydroxy-2-(2-pyridinyl)Risedronate
Packaging: 5mg
Price: $120
Updated: 2021/12/16

Medical Isotopes, Inc.

Product number: 59027
Product name: 1-Hydroxy-2-(2-pyridinyl)Risedronate
Packaging: 5mg
Price: $650
Updated: 2021/12/16

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[1-hydroxy-2-(2-pyridinyl)ethylidene]bis(phosphonic acid) Chemical Properties,Usage,Production

Uses

1-Hydroxy-2-(2-pyridinyl) Risedronate is an impurity in the synthesis of Risedronate (R521505), a pyridinyl biphosphonate bone resorption inhibitor.

[1-hydroxy-2-(2-pyridinyl)ethylidene]bis(phosphonic acid) Preparation Products And Raw materials

Raw materials

Preparation Products

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[1-hydroxy-2-(2-pyridinyl)ethylidene]bis(phosphonic acid) Suppliers

China 26 India 4 United Kingdom 1 United States 3 Global 34

Sinopharm Chemical Reagent Co,Ltd.

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Jinan blalong chemical co. LTD

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105462-23-5, [1-hydroxy-2-(2-pyridinyl)ethylidene]bis(phosphonic acid)Related Search:

Zoledronic acid Ibandronate sodium Risedronic Acid N-Oxide IIDJRNMFWXDHID-RZIJKAHPSA-N Risedronate Impurity C Sodium risedronate

[1-hydroxy-2-(2-pyridinyl)ethylidene]bis(phosphonic acid)

Risedronate Related CoMpound A

Risedronate EP Impurity B

Risedronate Related Compound A (20 mg) ([1-hydroxy-2-(2-pyridinyl)ethylidene]bis(phosphonic acid))

NE 58018

P,P'-[1-Hydroxy-2-(2-pyridinyl)ethylidene]bisphosphonic acid

(1-hydroxy-1-phosphono-2-pyridin-2-ylethyl)phosphonic acid

Risedronate EP Impurity B (Risedronate USP Related Compound A)

Risedronate Impurity 2（Risedronate EP Impurity B）

[1-Hydroxy-2-(pyridin-2-yl)ethylide

Phosphonic acid, P,P'-[1-hydroxy-2-(2-pyridinyl)ethylidene]bis-

Risedronate sodium 2.5-hydrate EP Impurity B

Risedronate EP Impurity B/ Risedronate Related Compound A

Risedronate Related Compound A ([1-hydroxy-2-(2-pyridinyl)ethylidene]bis(phosphonic acid)) (1604621)

1-Hydroxy-2-(pyridin-2-yl)ethylidene]bis(phosphonic Acid) ([1-Hydroxy-2-(pyridin-2-yl)ethane-1,1-diyl]bis(phosphonic Acid))

Risedronate USP Related Compound A

1-Hydroxy-2-(pyridin-2-yl)ethylidene]bis(phosphonic Acid) ([1-Hydroxy-2-(pyridin-2-yl)ethane-1,1-di

105462-23-5