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9,10-Secocholesta-5,7,10(19)-trien-3-ol

Vitamin D3 Struktur
67-97-0
CAS-Nr.
67-97-0
Bezeichnung:
9,10-Secocholesta-5,7,10(19)-trien-3-ol
Englisch Name:
Vitamin D3
Synonyma:
CHOLECALCIFEROL;VITAMIN D;COLECALCIFEROL;Vitamin D3 Crystal;VITAMINE D3;CALCIOL;Manufacturer;Cholecalciferol CRS;Cholecalciferol (Vitamin D3);Deparal
CBNumber:
CB6104867
Summenformel:
C27H44O
Molgewicht:
384.64
MOL-Datei:
67-97-0.mol

9,10-Secocholesta-5,7,10(19)-trien-3-ol Eigenschaften

Schmelzpunkt:
83-86 °C(lit.)
alpha 
105 º (c=0.8, EtOH 25 ºC)
Siedepunkt:
451.27°C (rough estimate)
Dichte
0.9717 (rough estimate)
Dampfdruck
2.0 x l0-6 Pa (20 °C, est.)
Brechungsindex
1.5100 (estimate)
Flammpunkt:
14 °C
storage temp. 
-20°C
L?slichkeit
Practically insoluble in water, freely soluble in ethanol (96 per cent), soluble in trimethylpentane and in fatty oils. It is sensitive to air, heat and light. Solutions in solvents without an antioxidant are unstable and are to be used immediately. A reversible isomerisation to pre-cholecalciferol takes place in solution, depending on temperature and time. The activity is due to both compounds.
pka
14.74±0.20(Predicted)
Aggregatzustand
powder
Farbe
White
Geruch (Odor)
odorless
Wasserl?slichkeit
<0.1 g/L (20 ºC)
Sensitive 
Air & Light Sensitive
Merck 
14,10019
BRN 
2339331
Stabilit?t:
Light Sensitive, Temperature Sensitive
InChIKey
QYSXJUFSXHHAJI-YRZJJWOYSA-N
LogP
9.085 (est)
CAS Datenbank
67-97-0(CAS DataBase Reference)
NIST chemische Informationen
Cholecalciferol(67-97-0)
EPA chemische Informationen
Cholecalciferol (67-97-0)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xn,T
R-S?tze: 26-24/25 -48/25
S-S?tze: 28-45-36/37
WGK Germany  2
RTECS-Nr. VS2900000
8-10-23
TSCA  Yes
HS Code  29362990
Giftige Stoffe Daten 67-97-0(Hazardous Substances Data)
Toxizit?t LD50 oral in rat: 42mg/kg
Bildanzeige (GHS) GHS hazard pictogramsGHS hazard pictograms
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H372 Sch?digt bei Hautkontakt und Verschlucken die Organe bei l?ngerer oder wiederholter Exposition. Spezifische Zielorgan-Toxizit?t (wiederholte Exposition) Kategorie 1 Achtung GHS hazard pictogramssrc="/GHS08.jpg" width="20" height="20" /> P260, P264, P270, P314, P501
Sicherheit
P260 Dampf/Aerosol/Nebel nicht einatmen.
P262 Nicht in die Augen, auf die Haut oder auf die Kleidung gelangen lassen.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P314 Bei Unwohlsein ?rztlichen Rat einholen / ?rztliche Hilfe hinzuziehen.

9,10-Secocholesta-5,7,10(19)-trien-3-ol Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R24/25:Giftig bei Berührung mit der Haut und beim Verschlucken.
R26:Sehr giftig beim Einatmen.
R48/25:Giftig: Gefahr ernster Gesundheitssch?den bei l?ngerer Exposition durch Verschlucken.
R23/24/25:Giftig beim Einatmen, Verschlucken und Berührung mit der Haut.

S-S?tze Betriebsanweisung:

S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.

Chemische Eigenschaften

White or colorless crystalline solid. Odorless;

Verwenden

Vitamin D3 analogue.

Indications

Vitamin D is the collective term for a group of compounds formed by the action of ultraviolet irradiation on sterols. Cholecalciferol (vitamin D3) and calciferol (vitamin D2) are formed by irradiation of the provitamins 7- dehydrocholesterol and ergosterol, respectively. The conversion to vitamin D3 occurs in the skin. The liver is the principal storage site for vitamin D, and it is here that the vitamin is hydroxylated to form 25-hydroxyvitamin D. Additional hydroxylation to form 1,25-dihydroxyvitamin D occurs in the kidney in response to the need for calcium and phosphate

Definition

A free vitamin D 3, isolated in crystalline state from the 3,5-dinitrobenzoate, produced by irradiation, and equivalent in activity to vitamin D3 of tunaliver oil.

Allgemeine Beschreibung

Fine colorless crystals. Water insoluble.

Air & Water Reaktionen

Sensitive to moisture, air and light. . Water insoluble.

Reaktivit?t anzeigen

Vitamin D3 may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas.

Health Hazard

SYMPTOMS: Symptoms of exposure to Vitamin D3 may include weakness, fatigue, lassitude headache, nausea, vomiting, diarrhea, polyuria, polydipsia, nocturia, decrease urinary concentrating ability, proteinuria, tissue calcification, hypertension and osteoporosis.

Brandgefahr

Flash point data for Vitamin D3 are not available. Vitamin D3 is probably combustible.

Landwirtschaftliche Anwendung

Rodenticide: Used in bait for vermin control. Vitamin D is a steroid hormone that has an important role in regulating body levels of calcium and phosphorus, and in mineralization of bone. Not approved for use in EU countries. Registered for use in the U.S. and other countries.

Handelsname

DELSTEROL®; DEPARAL®; D3- VIGANTOL®; QUINTOX®; RAMPAGE®; RICKETON®; TRIVITAN®; VIGORSAN®; VITINC DAN-DEE-3®

Mechanism of action

1, 25-(OH)2D3 exerts its influence within target tissues through high-affinity sterol-specific intracellular receptor proteins.The D3 receptor, similar to steroid receptor systems, translocates the hormone from the cell cytoplasm to the nucleus, where biological response is initiated via transcription and translation.

Clinical Use

The principal disorder associated with inadequate vitamin D intake is rickets. The low blood calcium and phosphate levels that occur during vitamin D deficiency stimulate parathyroid hormone secretion to restore calcium levels. In children, this deficiency leads to the formation of soft bones that become deformed easily; in adults, osteomalacia results from the removal of calcium from the bone.Vitamin D deficiency may occur in patients with metabolic disorders, such as hypoparathyroidism and renal osteodystrophy. The requirement for vitamin D is slightly higher in members of darker-pigmented races, since melanin interferes with the irradiation that produces vitamin D3 in the skin. People with limited exposure to the sun may need to supplement vitamin D intake.

Nebenwirkungen

The hypercalcemia resulting from hypervitaminosis D is responsible for toxic symptoms such as muscle weakness, bone pain, anorexia, ectopic calcification, hypertension, and cardiac arrhythmias. Toxicity in infants can result in mental and physical retardation, renal failure, and death.

Sicherheitsprofil

Poison by ingestion. An experimental teratogen. When heated to decomposition it emits acrid smoke and irritating fumes.

m?gliche Exposition

Sterol rodenticide used in bait for vermin control. Vitamin D is a steroid hormone that has an important role in regulating body levels of calcium and phosphorus, and in mineralization of bone. Not approved for use in EU countries

Stoffwechselwegen

Cholecalciferol (vitamin D3) is the mammalian form of vitamin D. It is normally produced in the skin by the action of UV light on its precursor, 7- dehydrocholesterol. Essential amounts of the vitamin are obtained thus or from dietary sources such as fish oils. The active form of the vitamin is 1,25-dihydroxy-cholecalciferol. Its formation occurs in two stages: 25- hydroxylation in the liver, followed by 1-hydroxylation in the kidney (see Engstrom and Koszewski, 1989 and references cited therein).

Versand/Shipping

UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required

l?uterung methode

It is converted into its 3,5-dinitrobenzoyl ester and crystallised repeatedly from acetone. The ester is then saponified and the free vitamin is isolated. [Laughland & Phillips Anal Chem 28 817 1956, Beilstein 6 III 2811, 6 IV 4149.]

Inkompatibilit?ten

Sensitive to air, light, and moisture. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.

Waste disposal

Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material’s impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.

9,10-Secocholesta-5,7,10(19)-trien-3-ol Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


9,10-Secocholesta-5,7,10(19)-trien-3-ol Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

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67-97-0(9,10-Secocholesta-5,7,10(19)-trien-3-ol)Verwandte Suche:


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