6677-98-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6677-98-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,7 and 7 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 6677-98:
(6*6)+(5*6)+(4*7)+(3*7)+(2*9)+(1*8)=141
141 % 10 = 1
So 6677-98-1 is a valid CAS Registry Number.
InChI:InChI=1/C24H34O6/c1-4-20(28)30-13-19(27)24(29)10-8-17-16-6-5-14-11-15(25)7-9-22(14,2)21(16)18(26)12-23(17,24)3/h11,16-18,21,26,29H,4-10,12-13H2,1-3H3/t16-,17-,18-,21+,22-,23-,24-/m0/s1
6677-98-1Relevant academic research and scientific papers
Process for preparing 3-enol ethers of 11β-hydroxy-Δ4 -pregnene-3-ones and derivatives thereof
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, (2008/06/13)
3-enol ethers of 11β-hydroxy-Δ4 -pregnene-3-ones are prepared by reacting triethylorthoacetate with an 11β-hydroxy-Δ4 -pregnene-3-one in a solvent which is at least 40% by weight or more ethanol and 60% by weight or less of a compatible oxygenated hydrocarbon liquid in the presence of an acid catalyst. This reaction forms a basis of a process for forming 6-halo-derivatives, particularly 6-chloro-Δ1,4,6 -pregnatrien -11β,17α,21-triol-3,20-dione.
