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Intermediates & APIs engineered to consistent specification.

A curated portfolio spanning peptide-coupling reagents, antifungal APIs, dental intermediates and high-purity phytochemicals. Custom synthesis and contract manufacturing available on request.

4-Chloro Benzophenone structure

Antihistamine intermediate

4-Chloro Benzophenone

CAS 134-85-0 · C₁₃H₉ClO

Key starting material in the cetirizine route, prepared by Friedel–Crafts acylation of chlorobenzene.

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4-Chloro Benzhydrol structure

Antihistamine intermediate

4-Chloro Benzhydrol

CAS 119-56-2 · C₁₃H₁₁ClO

Reduced form of 4-chloro benzophenone — the benzylic alcohol coupled with piperazine in the cetirizine route.

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4-Chloro Benzhydryl Piperazine structure

Antihistamine intermediate

4-Chloro Benzhydryl Piperazine

CAS 303-26-4 · C₁₇H₁₉ClN₂

Advanced cetirizine intermediate carrying the benzhydryl-piperazine pharmacophore.

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(R)-(4-Chlorophenyl)(phenyl)methanamine structure

Chiral antihistamine intermediate

(R)-(4-Chlorophenyl)(phenyl)methanamine

CAS 163837-57-8 · C₁₃H₁₂ClN

Chiral (R)-benzhydrylamine — the stereogenic core that delivers the eutomer in levocetirizine.

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N,N-Bis(2-chloroethyl)-4-methylbenzenesulfonamide structure

Chiral antihistamine intermediate

N,N-Bis(2-chloroethyl)-4-methylbenzenesulfonamide

CAS 42137-88-2 · C₁₁H₁₅Cl₂NO₂S

Bis-chloroethyl tosyl sulfonamide used to construct the piperazine ring of levocetirizine.

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(–)-p-Chloro Benzhydryl Piperazine structure

Chiral antihistamine intermediate

(–)-p-Chloro Benzhydryl Piperazine

CAS 130018-88-1 · C₁₇H₁₉ClN₂

Levo-rotatory benzhydryl piperazine — the chiral penultimate intermediate to levocetirizine.

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3-(4-Chlorobutyl)-1H-indole-5-carbonitrile structure

Antidepressant intermediate

3-(4-Chlorobutyl)-1H-indole-5-carbonitrile

CAS 143612-79-7 · C₁₃H₁₃ClN₂

Chlorobutyl-indole carbonitrile — the alkyl-indole fragment in the vilazodone SSRI/5-HT1A partial agonist.

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5-Cyano Indole structure

Antidepressant intermediate

5-Cyano Indole

CAS 15861-24-2 · C₉H₆N₂

Indole-5-carbonitrile — the aromatic core of vilazodone and several serotonergic agents.

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2-(2-Ethoxyphenoxy) Ethyl Bromide structure

Alpha-1 blocker intermediate

2-(2-Ethoxyphenoxy) Ethyl Bromide

CAS 3259-03-8 · C₁₀H₁₃BrO₂

Ethoxyphenoxy ethyl bromide — the aryl-ether alkylating agent in the tamsulosin synthesis.

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5-Acetonyl-2-Methoxybenzenesulphonamide structure

Alpha-1 blocker intermediate

5-Acetonyl-2-Methoxybenzenesulphonamide

CAS 116091-63-5 · C₁₀H₁₃NO₄S

Acetonyl methoxybenzenesulphonamide — the sulfonamide aryl core of tamsulosin.

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Phenyl Vinyl Sulfone structure

Antimigraine intermediate

Phenyl Vinyl Sulfone

CAS 5535-48-8 · C₈H₈O₂S

Michael-acceptor vinyl sulfone used to install the phenyl-sulfonylethyl arm of eletriptan.

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5-Bromo Indole structure

Antimigraine intermediate

5-Bromo Indole

CAS 10075-50-0 · C₈H₆BrN

Halogenated indole used as the cross-coupling and alkylation handle in the eletriptan scaffold.

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4-(Methylsulfonyl)phenyl Acetic Acid structure

COX-2 inhibitor intermediate

4-(Methylsulfonyl)phenyl Acetic Acid

CAS 90536-66-6 · C₉H₁₀O₄S

Methylsulfonyl phenyl acetic acid — the sulfonyl-aryl fragment of the selective COX-2 inhibitor etoricoxib.

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Indoline structure

Alpha-1 blocker intermediate

Indoline

CAS 496-15-1 · C₈H₉N

Saturated indoline scaffold — the bicyclic core of silodosin and several CNS molecules.

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2-[2-(2,2,2-Trifluoroethoxy)phenoxy]ethyl Methanesulfonate structure

Alpha-1 blocker intermediate

2-[2-(2,2,2-Trifluoroethoxy)phenoxy]ethyl Methanesulfonate

CAS 160969-03-9 · C₁₁H₁₃F₃O₅S

Trifluoroethoxy phenoxy ethyl mesylate — the aryl-ether alkylating agent in silodosin.

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2-(Piperidin-4-yl)-1H-benzimidazole structure

Antihistamine intermediate

2-(Piperidin-4-yl)-1H-benzimidazole

CAS 38385-95-4 · C₁₂H₁₅N₃

Piperidinyl benzimidazole — the heterocyclic core of the second-generation antihistamine bilastine.

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1-(2-Ethoxyethyl)-2-(piperidin-4-yl)-1H-benzimidazole Hydrochloride structure

Antihistamine intermediate

1-(2-Ethoxyethyl)-2-(piperidin-4-yl)-1H-benzimidazole Hydrochloride

CAS 1841081-72-0 · C₁₆H₂₃N₃O · HCl

Advanced bilastine intermediate carrying the N-ethoxyethyl benzimidazole-piperidine fragment.

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Benzeneacetic Acid, 4-(2-Chloroethyl)-α,α-dimethyl- structure

Antihistamine intermediate

Benzeneacetic Acid, 4-(2-Chloroethyl)-α,α-dimethyl-

CAS 2199440-16-7 · C₁₂H₁₅ClO₂

α,α-Dimethyl phenyl acetic acid with a chloroethyl side chain — the carboxylic acid arm of bilastine.

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