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VITAMIN A

VITAMIN A
VITAMIN A
CAS No.
68-26-8
Chemical Name:
VITAMIN A
Synonyms
Acon;Atav;-1-ol;Aoral;A-Sol;Atars;Avita;Vogan;Vafol;Vio-A
CBNumber:
CB8194893
Molecular Formula:
C20H30O
Formula Weight:
286.45
MOL File:
68-26-8.mol

VITAMIN A Properties

Melting point:
61-63 °C(lit.)
Boiling point:
368.81°C (rough estimate)
Density 
0.9933 (rough estimate)
refractive index 
1.641
Flash point:
-26 °C
storage temp. 
2-8°C
form 
crystalline
color 
yellow to orange
Water Solubility 
Practically insoluble inwaterorglycerol; soluble in absolute alcohol,methanol,℃hloroform, ether, fats and oils.
Sensitive 
Moisture & Light Sensitive
Merck 
13,10073
BRN 
403040
Stability:
Stable, but light and air sensitive. Incompatible with strong acids, strong oxidizing agents.
CAS DataBase Reference
68-26-8(CAS DataBase Reference)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xn,N,F,T
Risk Statements  22-38-67-65-62-51/53-48/20-11-43-61-63-36/38
Safety Statements  36/37-61-62-45-53-16-33-29-9-36/37/39-26
RIDADR  UN 1208 3/PG 2
WGK Germany  3
RTECS  VH6750000
8-10-16-23
TSCA  Yes
Toxicity LD50 (10 day) in mice (mg/kg): 1510 i.p.; 2570 orally (Kamm)
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H360 May damage fertility or the unborn child Reproductive toxicity Category 1A, 1B Danger
H413 May cause long lasting harmful effects to aquatic life Hazardous to the aquatic environment, long-term hazard Category 4
Precautionary statements:
P201 Obtain special instructions before use.
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P337+P313 IF eye irritation persists: Get medical advice/attention.
P405 Store locked up.
P403+P235 Store in a well-ventilated place. Keep cool.

VITAMIN A price More Price(18)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 17772 Retinol AldrichCPR 68-26-8 250mg $53 2018-11-13 Buy
Sigma-Aldrich 17772 Retinol ≥95.0% (HPLC), ~2700 U/mg 68-26-8 1g $433 2018-11-13 Buy
Alfa Aesar J62079 Retinol, 95%, synthetic 68-26-8 1g $201 2018-11-13 Buy
Alfa Aesar J62079 Retinol, 95% synthetic 68-26-8 100mg $49.4 2018-11-20 Buy
Cayman Chemical 20241 Vitamin A ≥98% 68-26-8 50mg $25 2018-11-19 Buy

VITAMIN A Chemical Properties,Uses,Production

Chemical Properties

Yellow-Orange Powder

Uses

mucolytic

Uses

vitamin A (Retinol) is the fat-soluble vitamin a which is required for new cell growth and prevention of night blindness. There is no appreciable loss by heating or freezing, and it is stable in the absence of air. Sources include liver, fortified margarine, egg, and milk. Vitamin A palmitate can be found in frozen egg substitute.

Uses

Occurs preformed only in animals; metabolized from carotenoids, such β-carotene, in the intestinal mucosa. Dietary sources include liver, milk, butter, cheese, eggs and fish liver oils or as carotenoi s from fruits and vegetables. Stored primarily in the liver in esterified form; transported in the blood by retinol binding protein (RBP). Nutritional factor.

Uses

Atracurium Besilate intermediate

Uses

retinol is a retinoid considered to be a skin revitalizer. It is reported to enhance skin radiance and treat conditions associated with chronological aging, such as wrinkles and fine lines, as well as dermatological disorders, including acne, follicular and lesion papules, actinic keratosis, oily skin, and rosacea. According to clinical dermatologists, retinol is one of the few substances with a demonstrated ability to reduce and prevent fine lines and wrinkles. It is able to alter the behavior of aged cells so they act in a more youthful manner. It is considered necessary for normal epidermal cell growth and differentiation and stimulates the production of new blood vessels in the skin, improving skin tone. In addition, retinol has anti-oxidant capacities and protects dermal fibers by counteracting the increased activity of enzymes that degrade collagen and elastin when the skin is exposed to uV rays. Retinol can be drying to the skin when used for a prolonged period of time or in concentrations that are too high. A weaker retinoid than retinoic acid, retinol converts to retinoic acid once on the skin. When compared to retinoic acid, retinol has an increased penetration potential and is less irritating, making it an effective ingredient for anti-aging products. The anti-aging benefits of topically treating skin with retinol are based on its penetration ability, which allows it to reach the sites in the skin requiring treatment. When used on sensitive skin for a prolonged period of time or in concentrations that are too high, retinol can cause dermatitis.

Definition

ChEBI: A retinol in which all four exocyclic double bonds have E- (trans-) geometry.

Safety Profile

Moderately toxic by ingestion. Human teratogenic effects by ingestion: developmental abnormalities of the craniofacial area and urogenital system. An experimental teratogen. Experimental reproductive effects. Human mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.

Purification Methods

Purify retinol by chromatography on columns of water-deactivated alumina and elute with 3-5% acetone in hexane. Separate the isomers by TLC plates on silica gel G, developed with pet ether (low boiling)/methyl heptanone (11:2). Store it in the dark, under N2, at 0o, or in Et2O, Me2CO or EtOAc. [See Gunghaly et al. Arch Biochem Biophys 38 75 1952, Beilstein 6 IV 4133.]

VITAMIN A Preparation Products And Raw materials

Raw materials

Preparation Products


VITAMIN A Suppliers

Global( 197)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 sales@capotchem.com China 19953 60
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 22049 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20786 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32651 55
Nanjing Finetech Chemical Co., Ltd.
025-85710122 17714198479
025-85710122 sales@fine-chemtech.com CHINA 894 55
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 10967 58
Jinan Tenglong Chemical Co.,Ltd
Whatsapp:+8615563263311 Skype:live:smions7080
smions7080@gmail.com CHINA 770 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 19990 58
Kono Chem Co., Ltd
+86-132 8924 6953
info@konochemical.com CHINA 2164 58
Shaanxi Yikanglong Biotechnology Co., Ltd.
17791478691
yklbiotech@163.com CHINA 295 58

View Lastest Price from VITAMIN A manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-16 VITAMIN A
68-26-8
US $8.00 / kg 1kg 98% 10MT career henan chemical co

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