57981-02-9 Usage
Chemical Properties
White powder
Uses
Different sources of media describe the Uses of 57981-02-9 differently. You can refer to the following data:
1. O-(2,3,4,5,6-Pentafluorobenzyl)hydroxylamine hydrochloride is used in the preparation of oximes of steroids having keto group. It is used as a derivatization reagent in the determination of thromboxane B2, prostaglandins, amygdalin and a variety of aldehydes, ketones and acids. It is a versatile reagent utilized for the detection of carbonyl-containing compounds by gas chromatography (GC), gas chromatography mass spectrometry (GC-MS) and other methods. As a derivatization reagent, it is also used for EC/LC analysis of keto-steroids and carbohydrates.
2. PFBHA.HCl has been used for derivatization of metabolites with carbonyl groups followed by analysis via GC-MS. It has also been used in aldehyde derivatization followed by aldehydic hydrolysis using GC/MS.
3. O-(2,3,4,5,6-Pentafluorobenzyl)hydroxylamine hydrochloride is used:In the preparation of oximes of steroids-bearing keto group.As a derivatization reagent in the determination of thromboxane B2, prostaglandins, amygdalin, and a variety of aldehydes, ketones, and acids.It is a versatile reagent used for the detection of carbonyl-containing compounds by GC, GC-MS, and other methods.
General Description
O-(2,3,4,5,6-Pentafluorobenzyl)hydroxylamine hydrochloride (PFBHA.HCl) is a derivatizing agent.
Purification Methods
Recrystallise the salt from EtOH to form colourless leaflets. Drying the compound at high vacuum and elevated temperature will result in losses by sublimation. [Youngdale J Pharm Sci 65 625 1976, Wehner & Handke J Chromatog 177 237 1979, Nambara et al. give incorrect m as 115-116o J Chromatogr 114 81 1975.]
Check Digit Verification of cas no
The CAS Registry Mumber 57981-02-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,9,8 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57981-02:
(7*5)+(6*7)+(5*9)+(4*8)+(3*1)+(2*0)+(1*2)=159
159 % 10 = 9
So 57981-02-9 is a valid CAS Registry Number.
InChI:InChI=1/C7H5F5NO.ClH/c8-3-2(1-14-13)4(9)6(11)7(12)5(3)10;/h1H2,13H3;1H/q+1;/p-1
