498-59-9 Usage
Definition
ChEBI: A dithioacetal consisting of two molecules of L-cysteine joined via their sulfanyl groups to methylene.
Purification Methods
Crystallise djenkolic acid from a large volume of water (solubility is 0.5g%). [du Vigneaud & Patterson J Biol Chem 114 533 1936, Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 pp 2682, 2687 1961, Beilstein 4 III 1591.] The N,N’-dibenzoyl derivative crystallises with 1H2O from aqueous EtOH with m 87.5-89o [Beilstein 9 III 1171.]
Check Digit Verification of cas no
The CAS Registry Mumber 498-59-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,9 and 8 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 498-59:
(5*4)+(4*9)+(3*8)+(2*5)+(1*9)=99
99 % 10 = 9
So 498-59-9 is a valid CAS Registry Number.
InChI:InChI=1/C7H14N2O4S2/c8-4(6(10)11)1-14-3-15-2-5(9)7(12)13/h4-5H,1-3,8-9H2,(H,10,11)(H,12,13)
