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Phosphonic acid, [[2-(2-amino-9H-purin-9-yl)ethoxy]methyl]-,bis(1-methylethyl) ester structure
Phosphonic acid, [[2-(2-amino-9H-purin-9-yl)ethoxy]methyl]-,bis(1-methylethyl) ester structure

Phosphonic acid, [[2-(2-amino-9H-purin-9-yl)ethoxy]methyl]-,bis(1-methylethyl) ester

Iupac Name:5-aminopyridine-3-carboxylic acid
CAS No.:24242-19-1
Molecular Weight:138.126
1. Names and Identifiers
1.1 Name
Phosphonic acid, [[2-(2-amino-9H-purin-9-yl)ethoxy]methyl]-,bis(1-methylethyl) ester
1.2 CAS No.
1.3 CID
1.4 Molecular Formula
C11H14N4O·CLH (isomer)
1.5 Inchi
1.6 InChkey
1.7 Canonical Smiles
1.8 Isomers Smiles
2. 3D Conformer
3. Properties
3.1 Melting Point
293 °C
3.2 Vapour
2.21E-08mmHg at 25°C
3.3 Refractive Index
1.5100 (estimate)
4. Safety and Handling
4.1 Risk Statements
4.2 Safety Statements
4.3 HazardClass
4.4 Hazard Note
H302; H315; H319; H335

2.Hazard identification

2.1 Classification of the substance or mixture

Acute toxicity - Oral, Category 4

Skin irritation, Category 2

Eye irritation, Category 2

Specific target organ toxicity \u2013 single exposure, Category 3

2.2 GHS label elements, including precautionary statements

Signal word


Hazard statement(s)

H302 Harmful if swallowed

H315 Causes skin irritation

H319 Causes serious eye irritation

H335 May cause respiratory irritation

Precautionary statement(s)

P264 Wash ... thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P271 Use only outdoors or in a well-ventilated area.


P301+P312 IF SWALLOWED: Call a POISON CENTER/doctor/\u2026if you feel unwell.

P330 Rinse mouth.

P302+P352 IF ON SKIN: Wash with plenty of water/...

P321 Specific treatment (see ... on this label).

P332+P313 If skin irritation occurs: Get medical advice/attention.

P362+P364 Take off contaminated clothing and wash it before reuse.

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P337+P313 If eye irritation persists: Get medical advice/attention.

P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P312 Call a POISON CENTER/doctor/\u2026if you feel unwell.


P403+P233 Store in a well-ventilated place. Keep container tightly closed.

P405 Store locked up.


P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification


6. Computational chemical data
  • Molecular Weight:138.126g/mol
  • Molecular Formula:C11H14N4O·CLH
  • Compound Is Canonicalized:True
  • XLogP3-AA:_0.3
  • Exact Mass:138.042927438
  • Monoisotopic Mass:138.042927438
  • Complexity:138
  • Rotatable Bond Count:1
  • Hydrogen Bond Donor Count:2
  • Hydrogen Bond Acceptor Count:4
  • Topological Polar Surface Area:76.2
  • Heavy Atom Count:10
  • Defined Atom Stereocenter Count:0
  • Undefined Atom Stereocenter Count:0
  • Defined Bond Stereocenter Count:0
  • Undefined Bond Stereocenter Count:0
  • Isotope Atom Count:0
  • Covalently-Bonded Unit Count:1
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