2-((4-((3-Ethynylphenyl)amino)-7-(2-methoxyethoxy)quinazolin-6-yl)oxy)acetic acid

2-[[4-[(3-乙炔基苯基)氨基]-7-(2-甲氧基乙氧基)-6-喹唑啉基]氧基]乙酸

Also known as: Erlotinib impurity 56, Erlotinib carboxylic acid impurity, 2-((4-((3-Ethynylphenyl)amino)-7-(2-methoxyethoxy)quinazolin-6-yl)oxy)acetic acid, Desmethyl Erlotinib Acid

2-((4-((3-Ethynylphenyl)amino)-7-(2-methoxyethoxy)quinazolin-6-yl)oxy)acetic acid (CAS 1170354-84-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C21H19N3O5 and a molecular weight of 393.399 g/mol. It is also known as Erlotinib impurity 56, Erlotinib carboxylic acid impurity and Desmethyl Erlotinib Acid. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1170354-84-3

Jingsj CID

J-1179609-3

Molecular Formula

C₂₁H₁₉N₃O₅

Chinese Name

2-[[4-[(3-乙炔基苯基)氨基]-7-(2-甲氧基乙氧基)-6-喹唑啉基]氧基]乙酸

Molecular Weight

393.399 g/mol

Category

Organic Acids

Last updated

8/21/2026