C11H12N2O2S
236.29 g/mol
APIWarning
Zyflo
CAS111406-87-2
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material
Zyflo is a brand name for zileuton, an oral active pharmaceutical ingredient that inhibits 5-lipoxygenase, thereby blocking the formation of leukotrienes. It is used as a maintenance treatment for asthma.
Active pharmaceutical ingredient for asthma maintenance therapy5-lipoxygenase inhibitor in pharmaceutical manufacturing
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:California Proposition 65
CAS 111406-87-2
Related Compounds
ReferenceSame Category
Ponatinib hydrochloride
CAS1114544-31-8
pharmaceutical raw material
ReferenceSame Category
Amlodipine besylate
CAS111470-99-6
pharmaceutical raw material
ReferenceSame Category
Metformin hydrochloride
CAS1115-70-4
pharmaceutical raw material
ReferenceSame Category
5-amino-1-cyclopropyl-7-(3,5-dimethyl-1-piperazinyl)-6,8-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid
CAS111542-93-9
pharmaceutical raw material
Referencesame scaffold
Benzothiophene-3-boronic acid
CAS113893-08-6
research compound
Referencesame scaffold
Merozoite surface antigen 2 (MSA-2)
CAS129425-81-6
research compound
Referencesame scaffold
3-(Bromomethyl)-7-chloro benzo[b]thiophene
CAS17512-61-7
pharmaceutical intermediate
Referencesame scaffold
1-Benzothiophen-5-amine
CAS20532-28-9
research compound
Safety Reference
Warning
H302Harmful if swallowed
H319Causes serious eye irritation
Regulatory Compliance1
- California Proposition 65USRegulation
Customs Tariff Classification
The international HS code for Zyflo (CAS 111406-87-2) is 2934.99.
HS code (international, 6-digit)
2934.99
EU CN code (8-digit)
2934 99 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
1-[1-(1-benzothiophen-2-yl)ethyl]-1-hydroxyurea
InChIKey
MWLSOWXNZPKENC-UHFFFAOYSA-N
SMILES
CC(C1=CC2=CC=CC=C2S1)N(C(=O)N)O
Synonyms (31)
- Zileuton (USP/INN)
- Zileuton, United States Pharmacopeia (USP)
- Zileutonum [INN-Latin]
- Abbot 64077
- Abbott 64077
- Leutrol
- ZILEUTON [MART.]
- Zileuton (Standard)
- Zileuton, >=98% (HPLC)
- Zileuton- Bio-X trade mark
- Zileutonum
- Ziluton
- Zyflo
- Zyflo (TN)
- Zyflo CR
- Zyflo Filmtab