Butyric anhydride is a colorless and transparent liquid, soluble in organic solvents such as ether. It decomposes into butyric acid in water and reacts with alcohol to form esters. Butyric anhydride is mainly used in the preparation of butyrate and tanning agent. It is the raw material for the preparation of cellulose butyrate, butyrate and perfume. It is also used in medicine as the raw material of gallbladder contrast agent iodine pantothenic acid and solvent. Butyric anhydride can be obtained by co-heating butyryl chloride and sodium butyrate, or by exchanging butyric acid with acetic anhydride.

3-Aminocrotononitrile

CAS:1118-61-2

Molecular Formula:C4H6N2

Alias

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3-Aminobut-2-Enenitrile; 2-Butenenitrile, 3-Amino-; 3-Amino-But-2-Enenitrile; (E)-3-Aminobut-2-Enenitrile; 2-Butenenitrile, 3-Amino-, (2Z)-; 3-Amino-2-Butene Nitrile

Brief Introduction

3-Aminocrotononitrile is used as a dye intermediate.

Bromophenol Blue

CAS:115-39-9

Molecular Formula:C19H10Br4O5S

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3',3'',5',5''-Tetrabromophenolsulfonephthalein; 2,6-Dibromo-4-[3-(3,5-Dibromo-4-Hydroxyphenyl)-1,1-Dioxo-2,1Lambda6-Benzoxathiol-3-yl]Phenol; Bromphenol Blue Sultone Form; Phenol, 4,4'-(3H-2,1-Benzoxathiol-3-Ylidene)bis[2,6-Dibromo-, S,S-Dioxide; 3',3'',5',5''-Tetrabromophenolsulfonphthalein; Bromophenol blue (BPB); BPB; Albutest; Tetrabromphenol Blue; Bromo dye

Brief Introduction

Bromophenol blue is colorless or light rose red fine crystals. It is mainly used as an acid-base indicator, the pH discoloration range is 3.0 to 4.6, and the color changes from yellow to green to blue-violet.

Dichloroacetic Acid Methyl Ester

MSDS

CAS:116-54-1

Molecular Formula:C3H4Cl2O2

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Methyl 2,2-Dichloroacetate; Dimethoxyacetic Acid Methyl Ester; Aceticacid,Dichloro-,Methylester; Ethanoicacid,Dichloro-,Methylester; Methyldichloroethanoate

Brief Introduction

This product can be used as an intermediate in pharmaceutical synthesis. It is used to manufacture mycotoxin, chloramphenicol and other drugs. It is also used in the dye industry.

N-Acetylsulfanilyl Chloride

CAS:121-60-8

Molecular Formula:C8H8ClNO3S

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ASC; 4-Acetylamino Benzenesulfonyl Chloride; 4-Acetamidophenylsulfonyl Chloride; 4-Acetamidobenzenesulphonyl Chloride; 4-(Acetylamino)-Benzenesulfonylchlorid; 4'-(Chlorosulfonyl)Acetanilide; 4-Acetamidobenzene-1-Sulfonyl Chloride; 4-Acetamidobenzene Sulfonyl Chloride

Brief Introduction

Intermediates of a variety of sulfonamides, such as sulfathiazole, sulfaisoxazole, sulfamethyl isoxazole, sulfaphenylpyrazole, sulfadiazine, etc. It is also an intermediate of dyes.

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