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CAS 99-04-7
3-Methylbenzoic acidm-Toluic acid
Codes: MONT-039
Application context (from source-drug indications)
Allergic rhinitisMontelukastAsthmaMontelukastHypersensitivity reactionMontelukastSeasonal allergic rhinitisMontelukastPerennial allergic rhinitisMontelukastExercise-induced asthmaMontelukast
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Montelukast | Tier B — Position early | - |
Position in synthesis routes (up/downstream chain)
Ordered by route registration; left → right is the synthesis direction. The highlighted node is the current CAS; others link to their own profiles.
3-Methylbenzoic acidm-Toluic acid→3-Methylbenzoic acid methyl ester→methyl 3-(bromomethyl)benzoate→3-[(E)-2-(7-Chloroquinolin-2-yl)ethenyl]benzoic acid methyl ester→7-Chloro-2-methylquinoline 7-Chloroquinaldine→3-[(E)-2-(7-Chloroquinolin-2-yl)ethenyl]benzoic acid methyl ester→3-[(E)-2-(7-Chloroquinolin-2-yl)ethenyl]benzoic acid→3-[(E)-2-(7-Chloroquinolin-2-yl)ethenyl]benzoyl chloride→potassium 3-ethoxy-3-oxopropanoate
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