64173-96-2 Usage
General Description
2-Diazo-1-naphthol-4-sulfonate, also known as DNPS, is a diazo dye used in the determination of amino acids. It is commonly used as a reagent in thin layer chromatography (TLC) to visualize amino acids separated on a plate. DNPS reacts specifically with primary amino groups to form colored complexes, allowing for the easy identification and quantification of amino acids. Its use in TLC makes it a valuable tool in biochemical research, as it provides a quick and sensitive method for analyzing amino acids in complex mixtures. Additionally, DNPS is also used in the determination of protein composition and has significant applications in the pharmaceutical and food industries.
Check Digit Verification of cas no
The CAS Registry Mumber 64173-96-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,1,7 and 3 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 64173-96:
(7*6)+(6*4)+(5*1)+(4*7)+(3*3)+(2*9)+(1*6)=132
132 % 10 = 2
So 64173-96-2 is a valid CAS Registry Number.
InChI:InChI=1/C10H8N2O4S/c11-12-8-5-9(17(14,15)16)6-3-1-2-4-7(6)10(8)13/h1-5,10,13H,(H,14,15,16)/p-1
64173-96-2Relevant articles and documents
Sulfochlorination of 1,2-Naphthoquinone-(2)-diazide by Chlorosulfonic acid
Sauer, E.,Polz, K.,Schopf, G.,Bendig, J.
, p. 467 - 473 (2007/10/02)
The sulfochlorination of 1,2-naphthoquinone diazide-(2) (1) by chlorosulfonic acid was investigated.The yields of the formed products (1,2-naphthoquinone diazide-(2)-4-sulfonic acid (4), 1,2-naphthoquinone diazide-(2)-5-sulfonic acid (5), 1,2-naphthoquinone diazide-(2)-4-sulfochloride (2) and 1,2-naphthoquinone diazide-(2)-5-sulfochloride (3)) depend on the temperature and on the time of reaction.The highest yields of the favoured 1,2-naphthoquinone diazide-(2)-4-sulfochloride (2) are obtained at 63 deg C and after a reaction time of 80 minutes (50percent).
