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134404-41-4

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134404-41-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134404-41-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,4,0 and 4 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 134404-41:
(8*1)+(7*3)+(6*4)+(5*4)+(4*0)+(3*4)+(2*4)+(1*1)=94
94 % 10 = 4
So 134404-41-4 is a valid CAS Registry Number.

134404-41-4Downstream Products

134404-41-4Relevant articles and documents

Synthesis and biological activities of a new series of secosteroids: vitamin D phosphonate hybrids

Steinmeyer, Andreas,Schwarz, Katica,Haberey, Martin,Langer, Gernot,Wiesinger, Herbert

, p. 257 - 266 (2007/10/03)

By a structural combination of phosphonate and bisphosphonate moieties with the vitamin D skeleton a series of new vitamin D analogs was synthesized. Derivatives with 24β-hydroxy- or 24-keto groups exerted considerable vitamin D activities in vitro while the hypercalcemic potentials were significantly reduced as compared to 1α,25-dihydroxyvitamin D3 (calcitriol). Whereas the 24-hydroxy analogs did not influence bone formation in vivo in dosages below the hypercalcemic threshold, the 24-ketones were found to induce synthesis of new bone matrix in non-hypercalcemic doses. Vitamin D bisphosphonate hybrids, on the other hand, which did not elicit substantial vitamin D activities in vitro and tend to decrease serum calcium levels in vivo clearly induced osteoid formation in rats, indicating a mechanism of action different to calcitriol. Copyright

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