These molecules contain a susbstructure that is rare in the Available Chemicals Directory, even if any heavy atom is replaced with a different heavy atom. The overall shape is distinctive in the ACD.

Catalog Number	Structure	FW	Chemical Name and % Purity	Please scroll down for more structures
Catalog #:   FS011331 CASRN:   850349-44-9 MFCD #:   MFCD06657758		180	(6,7-Dihydro-4H-pyrano[4,3-d]thiazol-2-yl)-acetonitrile (Purity >95%)	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 95 190 305 870 3625
Catalog #:   FS002215 CASRN:   864759-60-4 MFCD #:   MFCD08706235		348	{2-Benzyl-[2-methoxy-benzenesulfonyl)-amino]-ethyl}-dimethylamine hydrochloride (Purity >96%)	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 75 95 135 195
Catalog #:   FS005002 CASRN:   864685-41-6 MFCD #:   MFCD07778519		252	5-(3'-Cyanophenyl)-pyridine-3-carboxylate, ethyl ester (Purity >95%)	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 75 95 195
Catalog #:   FS000681 CASRN:   81056-10-2 MFCD #:   MFCD06657718		186	Cis, trans, trans-3,5-Dioxa-bicyclo[5.1.0]octane-8-carboxylic acid ethyl ester (Purity >95%)	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 75 95 195 395 1950
Catalog #:   FS003000 CASRN:   864685-37-0 MFCD #:   MFCD07778511		579	2-(((9H-Fluoren-9-yl)methoxy)carbonylamino)-2-(1-(7-tert-butoxy-7-oxoheptanoyl)piperidin-4-yl)acetic acid (Purity >95%)	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g     95 195 950 3400
Catalog #:   FS002212 CASRN:   864759-57-9 MFCD #:   MFCD08064299		347	4-(2-Trifluoromethoxy-benzenesulfonyl)-piperazinehydrochloride (Purity >99%)	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 75 95 145 295

*Note concerning Special Order chemicals: these are made to order with a typical lead time of 6 weeks. Minimum order sizes apply (usually 1 gram). Prices are listed in the catalog for available quantities only.