基本情報
- 標準SMILES
Cc1ncc(CO)c(CO)c1O- InChIKey
LXNHXLLTXMVWPM-UHFFFAOYSA-N- 分子式
- C8H11NO3
- 平均分子量
- 169.18 g/mol
- 単同位体質量
- 169.07389321
概要
Pyridoxine is a hydroxymethylpyridine with hydroxymethyl groups at positions 4 and 5, a hydroxy group at position 3 and a methyl group at position 2. The 4-methanol form of vitamin B6, it is converted intoto pyridoxal phosphate which is a coenzyme for synthesis of amino acids, neurotransmitters, sphingolipids and aminolevulinic acid. It has a role as a cofactor, a mouse metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite and a human metabolite. It is a member of methylpyridines, a vitamin B6, a monohydroxypyridine and a hydroxymethylpyridine.
名称と識別子
- 優先名称
- Pyridoxine
- IUPAC
- 4,5-bis(hydroxymethyl)-2-methylpyridin-3-ol
- 現地名
- ピリドキシン
- 英語名
- Pyridoxine
- 分子式
- C8H11NO3
- 分子量
- 169.18
名称と別名
名称をさらに表示
データベース識別子
- CAS
65-23-6- PubChem CID
- 1054
- DTXSID
DTXSID4023541- ChEMBL
CHEMBL1364- ChEBI
CHEBI:16709- UNII
- KV2JZ1BI6Z
- EC Number
- 200-603-0
- Nikkaji
- J2.095.349G、J2.356F
物性
構造計算による物性
- XLogP
- -0.8
- 極性表面積
- 73.6 Ų
- 水素結合供与体数
- 3
- 水素結合受容体数
- 4
- 回転可能結合数
- 2
- 重原子数
- 12
- 形式電荷
- 0
- 複雑度
- 142
実験および物理化学的性質
Drugs
Pharmaceuticals -> Listed in ZINC15
Pharmaceuticals
Human Drugs
Breast Feeding; Lactation; Milk, Human; Vitamins
FDA approved drugs -> Active ingredient
FDA approved drugs -> Active ingredient
FDA approved drugs -> Active ingredient
Vitamins and minerals
Melting Point
159-162 °C
159 - 162 °C
Physical Description
Dry Powder
White powder; [Alfa Aesar MSDS]
Solid
Ionization Efficiency
Positive
3.28
2.7
Agilent XCT
Electrospray ionization
formic acid (5.3nM)
Collision Cross Section
133.7 Ų [M+H]+ [CCS Type: DT; Buffer gas: N2; Ionization: APCI+; Dataset: TOXCAST; Source Identifier: DTXSID1040792]
134.4 Ų [M+H]+ [CCS Type: DT; Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]
132.3 Ų [M+H]+ [CCS Type: TW; Method: calibrated with polyalanine and drug standards]
134.6 Ų [M+H]+ [CCS Type: DT; Method: single field calibrated with Agilent tune mix (Agilent)]
126.18 Ų [M+H-H2O]+ [CCS Type: TW; Method: calibrated with polyalanine and drug standards]
135.69 Ų [M+H]+ [CCS Type: DT; Method: stepped-field]
物理化学的性質
- 融点
- 214 · 214-215 °C(lit.)
- 沸点
- 298.46 °C · 298.46°C (rough estimate)
- 比重(密度)
- 1.2435 · 1.2435 (rough estimate)
- 屈折率
- 1.51 · 1.5100 (estimate)
- 貯蔵温度
- 2 · Inert atmosphere,2-8°C
- 溶解性
- 2 O: · H2O: 0.1g/mL at20℃ 無色透明
- 酸解離定数(Pka)
- 5 · pKa 5.00(H2O t = 25.0 I = 0.15 (mixed)) (Uncertain)
- 外見
- 個体
- 色
- ホワイトからオフホワイト
- 臭い (Odor)
- 無臭
- BCS Class
- 1 · 1,3
- 安定性
- 安定。強力な酸化剤とは相容れない。
- 化粧品成分の機能
- ヘアコンディショニング帯電防止スキンコンディショニング
- InChI
- 1S/C8H11NO3/c1-5-8(12)7(4-11)6(3-10)2-9-5/h2,10-12H,3-4H2,1H3
- InChIKey
- LXNHXLLTXMVWPM-UHFFFAOYSA-N
- SMILES
- Cc1ncc(CO)c(CO)c1O
- LogP
- -0.77 · -0.770
- CAS データベース
- 65 · 65-23-6(CAS DataBase Reference)
- NISTの化学物質情報
- 2 · 2-Methyl-3-hydroxy-4,5-dihydroxymethylpyridine(65-23-6)
- EPAの化学物質情報
- 3 · 3,4-Pyridinedimethanol, 5-hydroxy-6-methyl- (65-23-6)
化学的性質
化学的特性crystalline solid
安全と法規制
GHS分類
GHS Classification
This chemical does not meet GHS hazard criteria for 3.8% (2 of 52) of reports.
Warning
H315 (96.2%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 52 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
危険有害性情報
Regulatory Information
Chemical: 3,4-Pyridinedimethanol, 5-hydroxy-6-methyl-
3,4-Pyridinedimethanol, 5-hydroxy-6-methyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 3,4-Pyridinedimethanol, 5-hydroxy-6-methyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 28-05-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/25773
Pyridoxine: Does not have an individual approval but may be used under an appropriate group standard
Hazards Summary
Has been tested in humans to relieve nausea and vomiting during pregnancy; Chronic ingestion of gram quantities can cause ataxia and sensory neuropathy; Has demonstrated testicular toxicity in rats; [REPROTOX] An irritant; May have cumulative adverse effects; [Alfa Aesar MSDS] See Pyridoxine hydrochloride.
毒性情報
Toxicity Summary
Vitamin B6 is the collective term for a group of three related compounds, pyridoxine (PN), pyridoxal (PL) and pyridoxamine (PM), and their phosphorylated derivatives, pyridoxine 5'-phosphate (PNP), pyridoxal 5'-phosphate (PLP) and pyridoxamine 5'-phosphate (PMP). Although all six of these compounds should technically be referred to as vitamin B6, the term vitamin B6 is commonly used interchangeably with just one of them, pyridoxine. Vitamin B6, principally in its biologically active coenzyme form pyridoxal 5'-phosphate, is involved in a wide range of biochemical reactions, including the metabolism of amino acids and glycogen, the synthesis of nucleic acids, hemogloblin, sphingomyelin and other sphingolipids, and the synthesis of the neurotransmitters serotonin, dopamine, norepinephrine and gamma-aminobutyric acid (GABA).
Drug Induced Liver Injury
Drug-Induced Liver Injury Severity and Toxicity (DILIst)
pyridoxine
DILI Negative
Intravenous
DOI:10.1016/j.drudis.2019.09.022
安全データ
- F
- 8-10
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- UV1350000
- hs_code
- 29362500
- risk_code
- 36/37/38
- hazard_code
- Xi
- safety_code
- 26-36
- ストレージクラス
- 11 - Combustible Solids
化学と産業
薬理情報
ATC Code
A11HA02
A - Alimentary tract and metabolism
QA - Alimentary tract and metabolism
A11HA02
Pharmacodynamics
Vitamin B6 (pyridoxine) is a water-soluble vitamin used in the prophylaxis and treatment of vitamin B6 deficiency and peripheral neuropathy in those receiving isoniazid (isonicotinic acid hydrazide, INH). Vitamin B6 has been found to lower systolic and diastolic blood pressure in a small group of subjects with essential hypertension. Hypertension is another risk factor for atherosclerosis and coronary heart disease. Another study showed pyridoxine hydrochloride to inhibit ADP- or epinephrine-induced platelet aggregation and to lower total cholesterol levels and increase HDL-cholesterol levels, again in a small group of subjects. Vitamin B6, in the form of pyridoxal 5'-phosphate, was found to protect vascular endothelial cells in culture from injury by activated platelets. Endothelial injury and dysfunction are critical initiating events in the pathogenesis of atherosclerosis. Human studies have demonstrated that vitamin B6 deficiency affects cellular and humoral responses of the immune system. Vitamin B6 deficiency results in altered lymphocyte differentiation and maturation, reduced delayed-type hypersensitivity (DTH) responses, impaired antibody production, decreased lymphocyte proliferation and decreased interleukin (IL)-2 production, among other immunologic activities.
Mechanism of Action
Vitamin B6 is the collective term for a group of three related compounds, pyridoxine (PN), pyridoxal (PL) and pyridoxamine (PM), and their phosphorylated derivatives, pyridoxine 5'-phosphate (PNP), pyridoxal 5'-phosphate (PLP) and pyridoxamine 5'-phosphate (PMP). Although all six of these compounds should technically be referred to as vitamin B6, the term vitamin B6 is commonly used interchangeably with just one of them, pyridoxine. Vitamin B6, principally in its biologically active coenzyme form pyridoxal 5'-phosphate, is involved in a wide range of biochemical reactions, including the metabolism of amino acids and glycogen, the synthesis of nucleic acids, hemogloblin, sphingomyelin and other sphingolipids, and the synthesis of the neurotransmitters serotonin, dopamine, norepinephrine and gamma-aminobutyric acid (GABA).
Metabolism/Metabolites
Pyridoxine is a prodrug primarily metabolized in the liver. The metabolic scheme for pyridoxine is complex, with formation of primary and secondary metabolites along with interconversion back to pyridoxine. Pyridoxine's major metabolite is 4-pyridoxic acid.
Hepatic. Half Life: 15-20 days
FDA Pharmacological Classification
KV2JZ1BI6Z
PYRIDOXINE
Established Pharmacologic Class [EPC] - Vitamin B6 Analog
Chemical/Ingredient structural concept [Chemical/Ingredient] - Vitamin B 6
Chemical/Ingredient structural concept [Chemical/Ingredient] - Analogs/Derivatives
Pyridoxine is a Vitamin B6 Analog. The chemical classification of pyridoxine is Vitamin B 6 and Analogs/Derivatives.
Absorption, Distribution and Excretion
The B vitamins are readily absorbed from the gastrointestinal tract, except in malabsorption syndromes. Pyridoxine is absorbed mainly in the jejunum. The Cmax of pyridoxine is achieved within 5.5 hours.
The major metabolite of pyridoxine, 4-pyridoxic acid, is inactive and is excreted in urine
Pyridoxine main active metabolite, pyridoxal 5’-phosphate, is released into the circulation (accounting for at least 60% of circulating vitamin B6) and is highly protein bound, primarily to albumin.
用途と製造
Uses
The 4-methanol form of vitamin B6 that is converted to the coenzyme pyridoxal phosphate; [ChemIDplus] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]
Use (kg; approx.) in Germany (2009): >7500
For the treatment of vitamin B6 deficiency and for the prophylaxis of isoniazid-induced peripheral neuropathy.
General Manufacturing Information
Soap, Cleaning Compound, and Toilet Preparation Manufacturing
3,4-Pyridinedimethanol, 5-hydroxy-6-methyl-: ACTIVE
応用分野
解説ビタミンB6群の一つ.ピリジン環のβ-位に結合している-CH2OHを特色とする.体内でアミノ酸代謝の補酵素に変化する.略記号PN.
来歴The discovery of vitamin was tortuous and legendary. After fat-soluble A and water soluble B were discovered by the year of 1915, the discovery of vitamins entered into a rapid developed period. In separation process of riboflavin by Kuhn and his colleagues, they noticed the unusual relationship between growth-promoting activ ity and fluorescence of extracts. Then they supposed that the existence of no fluorescent substances were very necessary for growth-promoting activity of riboflavin. And they considered this phenomenon as the evidence of a second chem ical existence in the thermostable complex. At last, they named this substance as vitamin B6 .Vitamin B6 is widely distributed in foods, including meats, whole-grain products (especially wheat), vegetables, and nuts. In the cereal grains, vitamin B6 is concen trated primarily in the germ and aleuronic layer. Thus, the refining of grains in the production of flours, which removes much of these fractions, results in substantial reductions of vitamin B6 content. The chemical forms of vitamin B6 tend to vary among foods between plant and animal origin: plant tissues contain most pyridox ine (the free alcohol form, pyridoxol), whereas animal tissues contain most pyri doxal and pyridoxamine.
使用pyridoxine HCL is a skin-conditioning agent that is also widely used in hair products.
一般的な説明The discovery of vitamin B6 is generally ascribed to Paul Gyrgy who first realized there was a vitamin that was distinctly different from vitamin B2 in 1934. Pyridoxine (PN) is the C4 hydroxymethyl derivative, pyridoxal (PL) is the C4 formyl derivative and pyridoxamine (PM) is the C4 aminomethyl derivative of 5-(hydroxymethyl)- 2-methylpyridin-3-ol). Each of these are also converted to their corresponding 5'-phosphate derivatives referred to as pyridoxine 5'-phosphate (PNP), pyridoxal 5'-phosphate (PLP), and pyridoxamine 5'-phosphate (PMP), respectively . Because of their ability to interconvert, all are considered active forms of vitamin B6 in vivo. Although PLP is the major coenzyme form, PMP can also function as a coenzyme primarily in aminotransferases. The major metabolite is 4-pyridoxic acid, which is excreted in the urine.
使用用途ピリドキシンは主に下記の3つにおいて使用されています。 1. 医薬品 ピリドキシンは、医薬品としてビタミンB6欠乏症の予防及び治療の他以下のような場合に用いられます。 ビタミンB6の需要が増大し、食事からの摂取が不十分な際の補給 (消耗性疾患、妊産婦、授乳婦など) ビタミンB6依存症 (ビタミンB6反応性貧血など) ビタミンB6の欠乏又は代謝障害が関与すると推定される次のような症状 口角炎、口唇炎、舌炎、急・慢性湿疹、脂漏性湿疹、接触皮膚炎、ニキビ、末梢神経炎、放射線障害 2. 食品添加物 ピリドキシンは、塩酸ピリドキシンとして食品添加物としても使用されます。調整粉乳や小麦粉に、ビタミンB6の強化のために加えられたり、健康的なイメージを付加した菓子や飲料などの食品に使用されたりしています。 3. 化粧品 化粧品の用途には、塩酸ピリドキシンやトリスヘキシルデカン酸ピリドキシンが使用され、それぞれ用途が違います。 塩酸ピリドキシン 塩酸ピリドキシンは、皮脂抑制作用を期待されて化粧品に配合されています。過剰な皮脂分泌を抑制することから毛髪用のコンディショニング剤などや、皮膚のテカリを防止する目的で、スキンケア製品などに使用されています。 トリスヘキシルデカン酸ピリドキシン トリスヘキシルデカン酸ピリドキシンは、ピリドキシンの3個のヒドロキシ基にイソパルミチン酸が結合したビタミンB6誘導体です。液状の油溶性の物質で、皮膚への浸透力が高いです。 フィラグリンとは角質層にあるたんぱく質ですが、皮膚に水分が不足すると、角質層の骨格となるたんぱく質「ケラチン」を集め、保湿力のある角質層をつくるはたらきの中心的役割を果たしています。トリスヘキシルデカン酸ピリドキシンはフィラグリンの産生を促進し、皮膚の保湿へ作用していると考えられています。
上流・下流製品情報
上流原料
下流製品
サプライヤー50 社
補足説明
定義本品は、ピリドキシン(*)の塩酸塩であり、次の化学式で表される。参照表示名称:ピリドキシン
定義ChEBI: A hydroxymethylpyridine with hydroxymethyl groups at positions 4 and 5, a hydroxy group at position 3 and a methyl group at position 2. The 4-methanol form of vitamin B6, it is converted intoto pyridoxal phosphate which is a coenzyme f r synthesis of amino acids, neurotransmitters, sphingolipids and aminolevulinic acid.
関連反応
関連ノート
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