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Isobutyl chloroformate

ALDRICH/177989 - 98%

Synonym: Chloroformic acid isobutyl ester; IBCF

CAS Number: 543-27-1
Empirical Formula (Hill Notation): C5H9ClO2
Molecular Weight: 136.58
EC Number: 208-840-1
MDL Number: MFCD00000642
Linear Formula: ClCO2CH2CH(CH3)2
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-177989-25G 25 g
 $42.60
1/EA		 Add To Favorites
45-177989-100G 100 g
 $44.70
1/EA		 Add To Favorites

 

assay 98%
bp 128.8 °C (lit.)
density 1.053 g/mL at 25 °C (lit.)
form liquid
functional group chloro
InChI 1S/C5H9ClO2/c1-4(2)3-8-5(6)7/h4H,3H2,1-2H3
InChI key YOETUEMZNOLGDB-UHFFFAOYSA-N
Quality Level 200 
refractive index n20/D 1.407 (lit.)
SMILES string CC(C)COC(Cl)=O
solubility benzene: miscible
  chloroform: miscible
  diethyl ether: miscible
vapor pressure 0.33 mmHg ( 20 °C)
Application: • Preparation of a volatile derivative of taurine and application to gas chromatographic determination of urinary taurine.: Demonstrates the utility of isobutyl chloroformate in preparing volatile derivatives of taurine for gas chromatographic analysis, offering a methodological advancement in clinical biochemistry (Masuoka et al., 1989 ).
• Quinazoline antifolates inhibiting thymidylate synthase: synthesis of four oligo(L-gamma-glutamyl) conjugates of N10-propargyl-5,8-dideazafolic acid and their enzyme inhibition.: This article investigates the synthesis and biological activity of quinazoline antifolates, using techniques including isobutyl chloroformate, relevant in medicinal chemistry and drug development (Pawelczak et al., 1989 ).
• Coupling of peptides to protein carriers by mixed anhydride procedure.: Discusses a novel technique using isobutyl chloroformate for peptide coupling to proteins, useful in bioconjugate chemistry and vaccine development (Samokhin & Filimonov, 1985 ).
• Folate analogues altered in the C9-N10 bridge region. 18. Synthesis and antitumor evaluation of 11-oxahomoaminopterin and related compounds.: Investigates the role of isobutyl chloroformate in synthesizing folate analogues for cancer research, showing its importance in therapeutic chemistry (Nair et al., 1981 ).
General description: Isobutyl chloroformate is used as a peptide reagent. In oligonucleotide synthesis, IBCF blocks the 5′-hydroxyl function of deoxyribosides. It also serves as condensing reagent.
Packaging: 25, 100 g in Sure/Seal™
Purity 98%
bp 128.8 °C (lit.)
Density 1.053 g/mL at 25 °C (lit.)
Refractive Index n20/D 1.407 (lit.)
UNSPSC 12352100

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