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123238-67-5

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123238-67-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123238-67-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,2,3 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 123238-67:
(8*1)+(7*2)+(6*3)+(5*2)+(4*3)+(3*8)+(2*6)+(1*7)=105
105 % 10 = 5
So 123238-67-5 is a valid CAS Registry Number.

123238-67-5Relevant articles and documents

PHYTOECDYSTEROIDS OF PLANTS OF THE GENUS Silene XII. 5α-ECDYSTERONE 22-O-BENZOATE FROM Silene scabrifolia

Saatov, Z.,Gorovits, M. B.,Abdullaev, N. D.,Abubakirov, N. K.

, p. 563 - 565 (1987)

The new phytoecdysteroid 5α-ecdysterone 22-O-benzoate (I), C34H48O8, mp 262-274 deg C (methanol-water) D20+45.8 deg (methanol), has been isolated from the epigeal organ of Silene scarbiofolia Kom.The alkaline hydrolysis of (I) led to 5α-ecdysterone (II) and benzoic acid.The isomerization of ecdysterone (0.6percent KHCO3 in CH3OH) has yielded (II).Details of the IR, mass, and NMR spectra of compound (I) are given.

A facile route to 20-hydroxyecdysone and side chain homologues from poststeron

Hedtmann, Udo,Klintz, Ralf,Hobert, Kurt,Frelek, Jadwiga,Vlahov, Iontscho,Welzel, Peter

, p. 3753 - 3772 (2007/12/18)

A flexible approach to ecdysteroids, chain elongated at C-26 and C-27, is reported. Key features are the addition of 5-lithio 2,3-dihydrofurans (3) to poststeron (10) and a stereoselective reduction of the 22-∞ group.

Seitenkettenhomologe des 20-Hydroxyecdysons: Synthese, Konfigurationsbestimmung und biochemische Charakterisierung

Hedtmann, Udo,Hobert, Kurt,Klintz, Ralf,Welzel, Peter,Frelek, Jadwiga,et al.

, p. 1543 - 1546 (2007/10/02)

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