58212-84-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 58212-84-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,2,1 and 2 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 58212-84:
(7*5)+(6*8)+(5*2)+(4*1)+(3*2)+(2*8)+(1*4)=123
123 % 10 = 3
So 58212-84-3 is a valid CAS Registry Number.
InChI:InChI=1/C26H38O2/c1-16-13-20-21(24(3)11-8-19(28)15-22(16)24)9-12-25(4)23(20)14-18-7-5-6-10-26(18,25)17(2)27/h15-16,18,20-21,23H,5-14H2,1-4H3/t16-,18+,20+,21-,23-,24+,25-,26-/m0/s1
58212-84-3Relevant articles and documents
Synthesis of 6α-methyl-16α,17α-cyclohexanoprogesterone via γ-methylenation of 16α,17α-cyclohexanopregn-4-ene-3,20-dione
Levina,Kamernitskii
, p. 1185 - 1187 (1997)
6-Methylene-16α,17α-cyclohexanopregn-4-ene-3,20-dione 2 has been synthesized by the reaction of Δ4-3-ketone 1 with CH2(OEt)2 and POCl3 in the presence of AcONa in 55% yield. Reduction of the product 2 in the presence of 5% Pd/C gives 6α-methyl-16α,17α-cyclohexanoprogesterone 3 in a yield exceeding 70%.