144300-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144300-56-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,3,0 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 144300-56:
(8*1)+(7*4)+(6*4)+(5*3)+(4*0)+(3*0)+(2*5)+(1*6)=91
91 % 10 = 1
So 144300-56-1 is a valid CAS Registry Number.
InChI:InChI=1/C27H42O4/c1-18(7-5-13-26(3,31)17-28)23-11-12-24-20(8-6-14-27(23,24)4)9-10-21-15-22(29)16-25(30)19(21)2/h5,7,9-10,18,22-25,28-31H,2,6,8,11-17H2,1,3-4H3/b7-5+,20-9-,21-10-
144300-56-1Relevant articles and documents
An Efficient Synthesis of (22E,25R)-1α,25,26-Trihydroxy-Δ22-Vitamin D3
Okabe, Masami,Sun, Ruen-Chu
, p. 6533 - 6536 (1993)
The title compound 2 was prepared from C22-aldehyde 3 in 51 percent overall yield.The key feature of this synthesis is a one-pot construction of the requisite side chain using α-lithiomethylenetriphenylphosphorane 4 and commercially available (S)-2-methylglycidol.
Process for the preparation of 1α,25,26-trihydroxy-22-ene-cholecalciferol
-
, (2008/06/13)
A process for preparing 1α,25(R),26-trihydroxy-22E-ene-cholecalciferol and 1α,25(S),26-trihydroxy-22E-ene-cholecalciferol.
