Organic Building Blocks

Alfa Aesar™ 2,4-Dichloro-D-phenylalanine, 98%

Chemical Name or Material: 2,4-Dichloro-D-phenylalanine CAS: 114872-98-9 Molecular Formula: C9H9Cl2NO2 Formula Weight: 234.09 MDL Number: MFCD01860873 Synonym: H-D-Phe(2,4-DiCl)-OH

Alfa Aesar™ 3,5-Dibromo-4-methylbenzoic acid, 98+%

Chemical Name or Material: 3,5-Dibromo-4-methylbenzoic acid CAS: 67973-32-4 Molecular Formula: C8H6Br2O2 Formula Weight: 293.94 MDL Number: MFCD00017544 Beilstein: 2577656 Synonym: 3,5-Dibromo-p-toluic acid

Alfa Aesar™ 4-Cyanophenyl isothiocyanate, 98%

Chemical Name or Material: 4-Cyanophenyl isothiocyanate CAS: 2719-32-6 Molecular Formula: C8H4N2S Formula Weight: 160.2 MDL Number: MFCD00041085 UN Number: UN2923 Beilstein: 2802621 Synonym: 4-Isothiocyanatobenzonitrile

Alfa Aesar™ Cyclobutylamine hydrochloride, 97%

Chemical Name or Material: Cyclobutylamine hydrochloride CAS: 6291-01-6 Molecular Formula: C4H9N·HCl Formula Weight: 107.58 MDL Number: MFCD00034953 Synonym: Aminocyclobutane hydrochloride

Alfa Aesar™ 2-Amino-3-bromo-5-nitrobenzonitrile, 98%

Chemical Name or Material: 2-Amino-3-bromo-5-nitrobenzonitrile CAS: 17601-94-4 Molecular Formula: C7H4BrN3O2 Formula Weight: 242.03 MDL Number: MFCD00054185 UN Number: UN3439 Synonym: 2-Bromo-6-cyano-4-nitroaniline

Alfa Aesar™ 4-Chloro-3-nitro-N-n-propylbenzamide, 97%

Chemical Name or Material: 4-Chloro-3-nitro-N-n-propylbenzamide CAS: 321531-57-1 Molecular Formula: C10H11ClN2O3 Formula Weight: 242.66 MDL Number: MFCD01212457 Beilstein: 20162018

Alfa Aesar™ (2S,3S)-3-(Boc-amino)-2-hydroxy-5-methylhexanoic acid, 97%

Chemical Name or Material: (2S,3S)-3-(Boc-amino)-2-hydroxy-5-methylhexanoic acid CAS: 73397-27-0 Molecular Formula: C12H23NO5 Formula Weight: 261.32 MDL Number: MFCD04974450

Alfa Aesar™ (Iodomethyl)cyclopentane, 98+%, stab. with copper

Chemical Name or Material: (Iodomethyl)cyclopentane CAS: 27935-87-1 Name Note: stabilized with copper Molecular Formula: C6H11I Formula Weight: 210.06 MDL Number: MFCD03453190 Synonym: Cyclopentylmethyl iodide

Alfa Aesar™ 1,5-Pentanedithiol, 96%

Chemical Name or Material: 1,5-Pentanedithiol CAS: 928-98-3 Molecular Formula: HS(CH2)5SH Formula Weight: 136.28 MDL Number: MFCD00004908 UN Number: UN3334 Beilstein: 1732335 Synonym: Pentamethylene dimercaptan

Alfa Aesar™ 4'-Methylbiphenyl-4-sulfonyl chloride, 98%

Chemical Name or Material: 4'-Methylbiphenyl-4-sulfonyl chloride CAS: 101366-51-2 Molecular Formula: C13H11ClO2S Formula Weight: 266.74 MDL Number: MFCD01631922 UN Number: UN3261

Alfa Aesar™ 4-(Trifluoromethyl)cyclohexanecarboxylic acid, cis + trans, 97%

Chemical Name or Material: 4-(Trifluoromethyl)cyclohexanecarboxylic acid CAS: 95233-30-0 Name Note: Cis + Trans Molecular Formula: C8H11F3O2 Formula Weight: 196.18 MDL Number: MFCD00220049

Alfa Aesar™ 3-(Methylaminomethyl)benzonitrile, 95%

Chemical Name or Material: 3-(Methylaminomethyl)benzonitrile CAS: 90389-96-1 Molecular Formula: C9H10N2 Formula Weight: 146.19 MDL Number: MFCD09731650 UN Number: UN3276

Alfa Aesar™ 1-Bromo-1-chloro-2,2,2-trifluoroethane, 99%

Chemical Name or Material: 1-Bromo-1-chloro-2,2,2-trifluoroethane CAS: 151-67-7 Molecular Formula: CF3CHBrCl Formula Weight: 197.39 MDL Number: MFCD00009602 Beilstein: 1736947 Merck Index: 14,4603 Synonym: 2-Bromo-2-chloro-1,1,1-trifluoroethane; Halothane

Alfa Aesar™ 4,4-Dimethyl-2-pentyne, 97+%

Chemical Name or Material: 4,4-Dimethyl-2-pentyne CAS: 999-78-0 Molecular Formula: C7H12 Linear Formula: (CH3)3CC≡CCH3 Formula Weight: 96.17 MDL Number: MFCD00041613 UN Number: UN3295 Beilstein: 1733540 Synonym: tert-Butyl methyl acetylene

Alfa Aesar™ 5-Methyl-2-(trifluoromethyl)benzoic acid, 97%

Chemical Name or Material: 5-Methyl-2-(trifluoromethyl)benzoic acid CAS: 120985-68-4 Molecular Formula: C9H7F3O2 Formula Weight: 204.15 MDL Number: MFCD06660291

Alfa Aesar™ 4-Iodo-2-nitroanisole, 98%

Chemical Name or Material: 4-Iodo-2-nitroanisole CAS: 52692-09-8 Molecular Formula: C7H6INO3 Formula Weight: 279.04 MDL Number: MFCD08060933 Synonym: 4-Iodo-1-methoxy-2-nitrobenzene

Alfa Aesar™ 1,2,3,4-Butanetetracarboxylic acid, 98+%

Chemical Name or Material: 1,2,3,4-Butanetetracarboxylic acid CAS: 1703-58-8 Molecular Formula: C8H10O8 Formula Weight: 234.16 MDL Number: MFCD00002722 Beilstein: 1729167

Poly(ethylene glycol), average M.W. 600, ACROS Organics™

Chemical Name or Material: Poly(ethylene glycol) Name Note: Average M.W. 600 CAS: 25322-68-3 Linear Formula: H(OCH2CH2)nOH Formula Weight: 600 MDL Number: MFCD01779603 Synonym: PEG

Alfa Aesar™ 4-Methoxyphenylhydrazine hydrochloride, 99%

Chemical Name or Material: 4-Methoxyphenylhydrazine hydrochloride CAS: 19501-58-7 Molecular Formula: C7H10N2O·HCl Formula Weight: 174.63 MDL Number: MFCD00012945 Beilstein: 3566583

Dicyclohexyl phthalate, 99%, ACROS Organics™

Chemical Name or Material: Dicyclohexyl phthalate CAS: 84-61-7 Assay: ≥98.5% Assay Percent Range: 99% Molecular Formula: C20H26O4 Formula Weight: 330.42 MDL Number: MFCD00003849

Alfa Aesar™ 4-Bromo-2,6-difluorobenzotrifluoride, 98%

Chemical Name or Material: 4-Bromo-2,6-difluorobenzotrifluoride CAS: 156243-64-0 Formula Weight: 260.99 MDL Number: MFCD01631616 Beilstein: 13252396 Synonym: 5-Bromo-1,3-difluoro-2-(trifluoromethyl)benzene

Alfa Aesar™ 5-Phenyl-2,4-pentadienoic acid, 98+%

Chemical Name or Material: 5-Phenyl-2,4-pentadienoic acid CAS: 1552-94-9 Molecular Formula: C6H5CH=CHCH=CHCHCO2H Formula Weight: 174.2 MDL Number: MFCD00014018 Beilstein: 2042414 Synonym: Cinnamylideneacetic acid

Alfa Aesar™ 2-Amino-1,3-propanediol hydrochloride, 98%

Chemical Name or Material: 2-Amino-1,3-propanediol hydrochloride CAS: 73708-65-3 Molecular Formula: C3H9NO2·HCl Formula Weight: 127.57 MDL Number: MFCD00012592 Synonym: Serinol hydrochloride

Alfa Aesar™ 2,5-Difluoromandelic acid, 96%

Chemical Name or Material: 2,5-Difluoromandelic acid CAS: 207853-61-0 Molecular Formula: C8H6F2O3 Formula Weight: 188.13 MDL Number: MFCD00061297 Synonym: alpha-Hydroxy-2,5-difluorophenylacetic acid

Alfa Aesar™ 3-Bromothioanisole, 98%

Chemical Name or Material: 3-Bromothioanisole CAS: 33733-73-2 Molecular Formula: C7H7BrS Formula Weight: 203.11 MDL Number: MFCD00041395 Beilstein: 2078598 Synonym: 3-Bromophenyl methyl sulfide

Alfa Aesar™ 5-Bromo-2-hydroxybenzophenone, 97%

Chemical Name or Material: 5-Bromo-2-hydroxybenzophenone CAS: 55082-33-2 Molecular Formula: C13H9BrO2 Formula Weight: 277.11 MDL Number: MFCD00525062

Cyanopropylmethyldichlorosilane, 97%, ACROS Organics™

Chemical Name or Material: Cyanopropylmethyldichlorosilane Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C5H9Cl2NSi Formula Weight: 182.13 Synonym: Dichloro(3-cyanopropyl)methylsilane

Alfa Aesar™ 4-Bromobenzeneboronic acid, 97+%

Chemical Name or Material: 4-Bromobenzeneboronic acid CAS: 5467-74-3 Molecular Formula: C6H6BBrO2 Formula Weight: 200.83 MDL Number: MFCD00002104 Beilstein: 2936347 Synonym: 4-Bromophenylboronic acid

Alfa Aesar™ 2-Fluoro-5-methoxy-3-(trifluoromethyl)benzonitrile, 97%

Chemical Name or Material: 2-Fluoro-5-methoxy-3-(trifluoromethyl)benzonitrile Molecular Formula: C9H5F4NO Formula Weight: 219.14 MDL Number: MFCD22201044 UN Number: UN3439

Resiniferatoxin, 99%, high purity, ACROS Organics™

Chemical Name or Material: Resiniferatoxin Name Note: High Purity CAS: 57444-62-9 Assay: ≥98.5% Assay Percent Range: 99% Molecular Formula: C37H40O9 Formula Weight: 628.7 MDL Number: MFCD00135927