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CAS RN: 133550-37-5 | Product Number: T3540

Tyrphostin AG 835

Purity: >98.0%(HPLC)
  • (S)-N-(α-Methylbenzyl)-3,4-dihydroxybenzylidenecyanoacetamide
  • (S)-2-Cyano-3-(3,4-dihydroxyphenyl)-N-(1-phenylethyl)acrylamide
1   14  
1   ≥20 

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Product Number T3540
Purity / Analysis Method >98.0%(HPLC)
Molecular Formula / Molecular Weight C__1__8H__1__6N__2O__3 = 308.34  
Physical State (20 deg.C) Solid
Storage Temperature <0°C
Store Under Inert Gas Store under inert gas
Condition to Avoid Light Sensitive,Air Sensitive,Heat Sensitive
CAS RN 133550-37-5
Reaxys Registry Number 4356230
PubChem Substance ID 354334648
MDL Number


Appearance Light yellow to Amber to Dark green powder to crystal
Purity(HPLC) min. 98.0 area%
Purity(Neutralization titration) min. 97.0 %
Specific rotation [a]20/D +93.0 to +98.0 deg(C=0.5,MeOH)
Properties (reference)
Melting Point 146 °C
Specific Rotation 96° (C=0.5,MeOH)
Pictogram Pictogram
Signal Word Warning
Hazard Statements H371 : May cause damage to organs.
H373 : May cause damage to organs through prolonged or repeated exposure.
Precautionary Statements P501 : Dispose of contents/ container to an approved waste disposal plant.
P260 : Do not breathe dust/ fume/ gas/ mist/ vapours/ spray.
P270 : Do not eat, drink or smoke when using this product.
P264 : Wash skin thoroughly after handling.
P308 + P311 : IF exposed or concerned: Call a POISON CENTER/doctor.
P405 : Store locked up.
Related Laws:
Transport Information:
HS Number 2926907090
Tyrphostin AG 835 (Tyrphostin B44): A Potent Inhibitor of Epidermal Growth Factor Receptor (EGFR) Kinase

Tyrphostin AG 835 (tyrphostin B44) is a potent inhibitor of epidermal growth factor receptor (EGFR) kinase.


PubMed Literature

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