121739-39-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121739-39-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,3 and 9 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 121739-39:
(8*1)+(7*2)+(6*1)+(5*7)+(4*3)+(3*9)+(2*3)+(1*9)=117
117 % 10 = 7
So 121739-39-7 is a valid CAS Registry Number.
InChI:InChI=1/C19H28O2/c1-18-11-9-16-14(15(18)7-8-17(18)21)6-5-13-4-2-3-10-19(13,16)12-20/h4,14-16,20H,2-3,5-12H2,1H3/t14-,15-,16-,18-,19+/m0/s1
121739-39-7Relevant articles and documents
Synthesis of and Chemical Model Reaction Studies with 3-Deoxyandrogens: Evidence Supporting a 2,3-Enolization Hypothesis in Human Placental Aromatase Catalysis
Oh, Soonsin S.,Robinson, Cecil H.
, p. 2237 - 2244 (2007/10/02)
A number od hitherto undescribed Δ2- and Δ3-3-deoxy-5α-androgen derivatives (17β,19-diols 12 and 13, 19-hydroxy-17-ketones 16 and 17, 19-oxo-17-ketones 18 and 19) were synthesized in good yield.The lithium-ammonia reduction of 19-(te