Ethoxy Benzoic Acid Sulfonamide

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Ethoxy Benzoic Acid Sulfonamide, CAS No 194602-23-8
CAS No . 194602-23-8
Chemical Name

2-Ethoxy-5-[(4-Methylpiperazin-1-yl)Sulfonyl]Benzoic acid

Non propriety Names Sulfonamide for Viagra
Molecular Formula C14H20N2O5S
Molecular Weight 328.3851
PRODUCT SPECIFICATION  
Description Off-white to white  crystalline powder.
Solubilit

2 % clear solution in DMF at 50 0C

Melting Point 198 0 C – 202 0 C
Chloride NMT  0.2 %
LOD (at 105 C 4hr.) 2.0 % w/w

Assay By Titration

98 to 102  %  w/w ( Dry Basis )

Related Substance

TLC method
Two impurities individually NMT  1.0  % by TLC
Total impurities NMT  2.0 %

It is used as an intermediate for the following drug :- VIAGRA - Sildenafil citrate (CAS No171599-83-0) Therapeutic Category Of This Drug :- Erectile Dysfunction

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