(24S)-24,25-Dihydroxyvitamin D3 - CAS 55700-58-8
Not Intended for Therapeutic Use. For research use only.
Category:
Inhibitor
Product Name:
(24S)-24,25-Dihydroxyvitamin D3
Catalog Number:
55700-58-8
CAS Number:
55700-58-8
Description:
(24S)-24,25-Dihydroxycholecalciferol is an inactive form of vitamin D3 which undergoes various levels of hydroxylation to form active vitamin D3 analogs.
Molecular Weight:
416.64
Molecular Formula:
C27H44O3
COA:
Inquire
MSDS:
Inquire
Targets:
VD/VDR
Chemical Structure
CAS 55700-58-8 (24S)-24,25-Dihydroxyvitamin D3

Related VD/VDR Products


CAS 57333-96-7 Tacalcitol

Tacalcitol
(CAS: 57333-96-7)

Tacalcitol promotes normal bone development by regulating calcium and modulates immunological and inflammatory processes. lt induces nerve growth factor product...

CAS 67-97-0 Cholecalciferol

Cholecalciferol
(CAS: 67-97-0)

Cholecalciferol is a naturally occuring form of vitamin D which is obtained from dietary sources, such as fish, or through the conversion of 7-dehydrocholestero...

CAS 103656-40-2 Calcitriol Impurities D

Calcitriol Impurities D
(CAS: 103656-40-2)

One of the impurities of Calcitriol, an active metabolite of VD3, could be a agonist of vitamin D receptor.

CAS 457048-34-9 1α, 24, 25-Trihydroxy VD2

1α, 24, 25-Trihydroxy VD2
(CAS: 457048-34-9)

1alpha, 24, 25-Trihydroxy VD2 is a vitamin D analog.

CAS 134404-52-7 Seocalcitol

Seocalcitol
(CAS: 134404-52-7)

Seocalcitol is a vitamin D receptor (VDR) agonist. Seocalcitol exhibits anti-tumor and anti-proliferative activity with reduced hypercalcemic effects

CAS 112965-21-6 Calcipotriol

Calcipotriol
(CAS: 112965-21-6)

Calcipotriol, a 1,25-Dihydroxyvitamin D3 analogue, is used as topical treatment for psoriasis.

CAS 112875-61-3 Impurity of Calcipotriol

Impurity of Calcipotriol
(CAS: 112875-61-3)

Impurity of Calcipotriol; Calcipotriol (MC 903; Calcipotriene) is a ligand of VDR-like receptors.

CAS 1217448-46-8 VD2-D3

VD2-D3
(CAS: 1217448-46-8)

An internal standard suitable for quantitation of Vitamin D2 levels in LC-MS/MS methods and testing applications including clinical and diagnostic testing or qu...

CAS 118584-54-6 VD3-D6

VD3-D6
(CAS: 118584-54-6)

VD3-D6(Vitamin D3-26,26,26,27,27,27-d6) is the deuterated form of Vitamin D3; tools for determination of Vitamin D3 metabolites in human serum.

CAS 112849-14-6 (24S)-MC 976

(24S)-MC 976
(CAS: 112849-14-6)

(24S)-MC 976 is a Vitamin D3 derivative.

CAS 112828-09-8 (24R)-MC 976

(24R)-MC 976
(CAS: 112828-09-8)

(24R)-MC 976 is a Vitamin D3 derivative.

CAS 126860-83-1 MC 1046

MC 1046
(CAS: 126860-83-1)

MC 1046 is a vitamin D3 analogue with similar effects. Impurity of Calcipotriol, an antipsoriatic.

CAS 131875-08-6 Lexacalcitol

Lexacalcitol
(CAS: 131875-08-6)

KH1060 metabolism could be blocked by the cytochrome P450 inhibitor, ketoconazole. KH1060 was not an effective competitor of C24 oxidation of 1alpha,25-(OH)2D3....

CAS 103909-75-7 Maxacalcitol

Maxacalcitol
(CAS: 103909-75-7)

Maxacalcitol is non-calcemic vitamin D3 analog and ligand of VDR-like receptors.

CAS 21343-40-8 Ercalcidiol

Ercalcidiol
(CAS: 21343-40-8)

A metabolite of Vitamin D2

CAS 58050-55-8 24, 25-Dihydroxy VD2

24, 25-Dihydroxy VD2
(CAS: 58050-55-8)

24, 25-Dihydroxy VD2 is a hydroxylated metabolite of Vitamin D2, which is a synthetic analog of Vitamin D.

CAS 72203-93-1 Calcitetrol

Calcitetrol
(CAS: 72203-93-1)

Calcitetrol is the hormonally active form of vitamin D with three hydroxyl groups. It increases blood calcium levels ([Ca2+]) by promoting absorption of dietary...

CAS 129831-99-8 MC 976

MC 976
(CAS: 129831-99-8)

MC 969 is an analog of the calcemic drug 1α-hydroxyvitamin D3 (1α-OH-D3) in which carbons 25, 26, and 27 in the side chain are incorporated into a cyclopropane ...

CAS 63283-36-3 Calcifediol monohydrate

Calcifediol monohydrate
(CAS: 63283-36-3)

Calcifediol monohydrate is a prehormone that is produced in the liver by hydroxylation of vitamin D3 (cholecalciferol) by the enzyme cholecalciferol 25-hydroxyl...

Reference Reading


1.Putative basal lateral membrane receptors for 24,25-dihydroxyvitamin D(3) in carp and Atlantic cod enterocytes: characterization of binding and effects on intracellular calcium regulation.
Larsson D1, Nemere I, Sundell K. J Cell Biochem. 2001 Aug 1-9;83(2):171-86.
The vitamin D metabolite, 24R,25-dihydroxyvitamin D(3) (24R,25(OH)(2)D(3)), was tested for its ability to specifically bind to basal lateral membranes isolated from intestinal epithelium of Atlantic cod (a seawater fish), carp (a freshwater fish), and chicken. Specific saturable binding was demonstrated in membranes from all three species. Membranes from Atlantic cod, carp, and chicken revealed K(d)'s of 7.3 +/- 0.9, 12.5 +/- 0.9 and 7.8 +/- 0.1 nM, and a B(max) for each species estimated to 57.9 +/- 2.9, 195.1 +/- 8.4 and 175 +/- 0.8 fmol/mg protein, respectively. Scatchard analyses indicated a convex curvature and Hill analyses revealed apparent Hill coefficients of 1.84 +/- 0.28, 1.80 +/- 0.29, and 1.78 +/- 0.27 for Atlantic cod, carp and chicken, suggesting a positive cooperative binding in all three species. Basal lateral membranes from Atlantic cod and carp were used to further characterize the binding moiety. In competition studies, basal lateral membranes from Atlantic cod or carp did not discriminate between 24R,25(OH)(2)D(3) and the 24S,25(OH)(2)D(3) isomer, whereas, 1,25(OH)(2)D(3) and 25(OH)D(3), were less effective in competing with [(3)H]24R,25(OH)(2)D(3) for binding to basal lateral membranes in Atlantic cod and carp.
2.Update on biological actions of 1alpha,25(OH)2-vitamin D3 (rapid effects) and 24R,25(OH)2-vitamin D3.
Norman AW1, Okamura WH, Bishop JE, Henry HL. Mol Cell Endocrinol. 2002 Nov 29;197(1-2):1-13.
All biologic responses to vitamin D are now known to arise as a consequence of the metabolism of this seco-steroid into its two principal biologically active metabolites 1alpha,25(OH)(2)-vitamin D(3) (1ALPHA;,25(OH)(2)D(3)) and 24R,25(OH)(2)-vitamin D(3) (24R,25(OH)(2)D(3)). 1alpha,25(OH)(2)D(3) is the dominant metabolite and produces a wide array of biological responses via interacting both with the classical vitamin D nuclear receptor (VDR(nuc)) that regulates gene transcription in over 30 target organs and with a putative cell membrane receptor (VDR(mem1,25)) that mediates rapid (within seconds to minutes) biological responses. Ligand occupancy of VDR(mem1,25) is linked to signal transduction systems that can mediate the opening of Ca(2+) and chloride voltage gated channels as well as activation of MAP-kinase. MAP-kinase activation in some cells containing VDR(mem1,25)+VDR(nuc) then results in "cross-talk" from VDR(mem1,25) to VDR(nuc) which modulates transactivation of 1alpha,25(OH)(2)D(3) responsive gene promoters.
3.24R,25-dihydroxyvitamin D3 increases cyclic GMP contents, leading to an enhancement of osteocalcin synthesis by 1,25-dihydroxyvitamin D3 in cultured human osteoblastic cells.
Yamamoto T1, Ozono K, Shima M, Yamaoka K, Okada S. Exp Cell Res. 1998 Oct 10;244(1):71-6.
The effect of the physiological vitamin D metabolite 24R, 25-dihydroxyvitamin D3 [24R,25(OH)2D3] on human osteoblastic cells was assessed. Physiological concentrations (10(-9)-10(-8) M) of 24R, 25(OH)2D3 significantly increased the cyclic guanosine 5'-monophosphate (cGMP) content in the human osteoblastic cells by approximately 200% in 5 to 15 min. In contrast, 24S, 25-dihydroxyvitamin D3 had only a weak effect on the cGMP content, and 1,25-dihydroxyvitamin D3 [1,25(OH)2D3] did not affect the content. The production of osteocalcin was not induced by 10(-9)-10(-8) M of 24R,25(OH)2D3 in the absence of 1,25(OH)2D3. However, the same concentration of 24R,25(OH)2D3 showed stimulatory effects on osteocalcin synthesis in the presence of 10(-9) M 1, 25(OH)2D3. Rp-8Br-cyclic GMP, a specific inhibitor of cyclic GMP-dependent protein kinase, significantly inhibited the cooperative effect of 24R,25(OH)2D3 with 1,25(OH)2D3 on the osteocalcin synthesis, although Rp-8Br-cyclic AMP, a specific inhibitor of cyclic AMP-dependent protein kinase, did not affect the cooperative effect.
4.Studies on 24R,25-dihydroxyvitamin D3: evidence for a nonnuclear membrane receptor in the chick tibial fracture-healing callus.
Kato A1, Seo EG, Einhorn TA, Bishop JE, Norman AW. Bone. 1998 Aug;23(2):141-6.
The effect(s) of 24R,25-dihydroxyvitamin D3 [24R,25(OH)2D3] on fracture healing was studied in a vitamin D-depleted chick model. 24R,25(OH)2D3, together with another hormonally active vitamin D metabolite, 1alpha,25-dihydroxyvitamin D3 [1alpha,25(OH)2D3], improved bone mechanical strength parameters (torsional strength, angular deformation, and stiffness) and the ash content. The synthetic epimer 24S,25-dihydroxyvitamin D3 [24S,25(OH)2D3] was not as potent as the natural 24R,25(OH)2D3. In light of the ability of the fracture-healing callus to discriminate between 24R,25(OH)2D3 and 24S,25(OH)2D3, a search was initiated in fracture-healing callus tissue for the presence of a specific 24R,25(OH)2D3 receptor. No evidence was obtained for a classical nuclear/cytosol receptor for 24R,25(OH)2D3 in the fracture-healing callus. A specific receptor/binding protein for 24R,25(OH)2D3 was found in the callus membrane fraction, which showed different ligand binding affinities [KD = 18.