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79862-68-3

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79862-68-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79862-68-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,8,6 and 2 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 79862-68:
(7*7)+(6*9)+(5*8)+(4*6)+(3*2)+(2*6)+(1*8)=193
193 % 10 = 3
So 79862-68-3 is a valid CAS Registry Number.
InChI:InChI=1/C21H30BrNO2/c1-20-9-7-14(24)11-13(20)3-4-15-16-5-6-18(23-19(25)12-22)21(16,2)10-8-17(15)20/h11,15-18H,3-10,12H2,1-2H3,(H,23,25)/t15?,16?,17?,18-,20-,21-/m0/s1

79862-68-3Downstream Products

79862-68-3Relevant articles and documents

SYNTHESIS OF 16α-BROMOACETOXY ANDROGENS AND 17β-BROMOACETYLAMINO-4-ANDROSTEN-3-ONE: POTENTIAL AFFINITY LABELS OF HUMAN PLACENTAL ARMATASE.

Numazawa, Mitsuteru,Osawa, Yoshio

, p. 149 - 160 (1981)

A novel synthesis of 16α-hydroxy-4-androstene-3,17-dione (3), 16α-hydroxy-4-androstene-3,6,17-trione (4), 17β-amino-5-androsten-3β-ol (10) and 17β-amino-4-androsten-3-one (14) is described. 16α-Bromoacetoxy-4-androstene-3,17-dione (5), 16α-bromoacetoxy-4-androstene-3,6,17-trione (6) and 17β-bromoacetylamino-4-androsten-3-one (15) were synthesized as potentially selective irreversible inhibitors of androgen aromatases. 16α-Bromo-4-androstene-3,17-dione (1) and 16α-bromo-4-androstene-3,6,17-trione (2) were converted to compounds 3 and 4 in 80-90percent yield by controlled stereospecific hydrolysis using sodium hydroxide in aqueous pyridine.Reductive amination of 3β-hydroxy-5-androsten-17-one and 3-methoxy-3,5-androstadien-17-one (11) using ammonium acetate and sodium cyanohydridoborate (NaBH3CN) and a subsequent treatment with acid gave the amines 10 and 14, respectively, as a salt.The corresponding 17-imino compounds 9 and 13 were also isolated from the reaction mixtures when methanol was used as a solvent for the reaction.The 16α-hydroxyl compounds 3 and 4 and the 17β-amino compound 14 were converted to the corresponding bromoacetyl derivatives, 5, 6, and 15, with bromoacetic acid and N,N'-dicyclohexylcarbodiimide.

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