基本情報
- 標準SMILES
O=C(O)c1ccncc1- InChIKey
TWBYWOBDOCUKOW-UHFFFAOYSA-N- 分子式
- C6H5NO2
- 平均分子量
- 123.11 g/mol
- 単同位体質量
- 123.0320284
概要
Isonicotinic acid is a pyridinemonocarboxylic acid in which the carboxy group is at position 4 of the pyridine ring. It has a role as a human metabolite and an algal metabolite. It is a conjugate acid of an isonicotinate.
名称と識別子
- 優先名称
- Isonicotinic Acid
- IUPAC
- pyridine-4-carboxylic acid
- 現地名
- イソニコチン酸
- 英語名
- Isonicotinic acid
- 分子式
- C6H5NO2
- 分子量
- 123.11
名称と別名
名称をさらに表示
データベース識別子
- CAS
163751-04-0、55-22-1- PubChem CID
- 5922
- DTXSID
DTXSID8020757- ChEMBL
CHEMBL1203- ChEBI
CHEBI:6032- UNII
- Y8SYN761TQ
- EC Number
- 200-228-2
- Nikkaji
- J4.559D、J452.015G
物性
構造計算による物性
- XLogP
- 0.4
- 極性表面積
- 50.2 Ų
- 水素結合供与体数
- 1
- 水素結合受容体数
- 3
- 回転可能結合数
- 1
- 重原子数
- 9
- 形式電荷
- 0
- 複雑度
- 108
実験および物理化学的性質
物理化学的性質
- 融点
- 300 °C · ≥300 °C (lit.)
- 沸点
- 260 °C · 260 °C (15 mmHg)
- 比重(密度)
- 1 · 1,47g/cm
- 屈折率
- 1.5423 · 1.5423 (estimate)
- 闪点
- 260 °C/15mm · 260°C/15mm
- 貯蔵温度
- no restrictions.
- 溶解性
- 6 g/リットル · 6g/リットル
- 酸解離定数(Pka)
- 4.96 · 4.96(at 25℃)
- 外見
- 粉
- 色
- 黄色から黄褐色
- PH
- 3 · 3-4 (6g/l, H2O, 20℃)(saturated solution)
- 由来生物
- rabbit
- 水溶解度
- 5.2 g/L · 5.2g/L(20℃)
- Merck
- 14 · 14,5187
- BRN
- 109599 · 109599
- Henry's Law Constant
- 1.6 · 1.6×104 mol/(m3Pa) at 25℃, Abraham and Jr. (2019)
- 化粧品成分の機能
- スキンコンディショニング - その他
- InChI
- 1S/C6H5NO2/c8-6(9)5-1-3-7-4-2-5/h1-4H,(H,8,9)
- InChIKey
- TWBYWOBDOCUKOW-UHFFFAOYSA-N
- SMILES
- OC(=O)c1ccncc1
- CAS データベース
- 55 · 55-22-1(CAS DataBase Reference)
- NISTの化学物質情報
- Isonicotinic acid(55-22-1)
- EPAの化学物質情報
- Isonicotinic acid (55-22-1)
化学的性質
化学的特性isonicotinic acid is also known as pyridine-4-carboxylic acid. white to light yellow crystal powder or white needle crystals. odorless, sublimable. molecular weight 123.11. melting point 319°C . slightly soluble in cold water, soluble in hot water, insoluble in alcohol, benzene and ether. isonicotinic acid is an amphoteric compound that is soluble in both acids and bases. soluble in hot water and ethanol, slightly soluble in cold water and ether. stable to heat and oxidation.
安全と法規制
GHS分類
GHS Classification
This chemical does not meet GHS hazard criteria for 35.8% (34 of 95) of reports.
Warning
H315 (57.9%): 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 95 reports by companies from 15 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: 4-Pyridinecarboxylic acid
Status: Active Update: 16-02-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/22523
4-Pyridinecarboxylic acid: Does not have an individual approval but may be used under an appropriate group standard
Hazards Summary
Causes somnolence, ataxia, and changes in motor activity in oral lethal-dose studies of rats; Causes other liver changes and multiple enzyme effects in 40-day intermittent oral studies of rats; [RTECS] A skin and strong eye irritant; [Sigma-Aldrich MSDS] See Nicotinic acid.
毒性情報
安全データ
- wgk
- 2
- tsca
- TSCA listed
- rtecs
- NS1103000
- 毒性
- LD50 orally in Rabbit: 5000 mg/kg
- hs_code
- 29333999
- risk_code
- 36/37/38
- 化審法
- (9)-185
- hazard_code
- Xi
- safety_code
- 26-36
- Hazard Classifications
- Acute Tox. 4 Oral
- ストレージクラス
- 11 - Combustible Solids
化学と産業
薬理情報
用途と製造
応用分野
解説イソニコチン酸,熱水に可溶,冷水,エチルアルコール,エーテル,ベンゼンに難溶。抗結核薬のイソニアジドの合成原料である。ブリタニカ国際大百科事典 小項目事典 ブリタニカ
使用Isonicotinic acid is a metabolite of isoniazid. It is an isomer of nicotinic acid. The chronic toxicity of isonicotinic acid is slightly higher than that of isonicotinic acid hydrazide ( INH ) .Isonicotinic acid is a moderately basic compound (based on its pKa). Isonicotinic acid is an organic compound with a carboxyl group on a pyridine ring. The carboxyl group for isonicotinic acid is on the 4-position instead of the 3-position for nicotinic acid. It is an isomer of nicotinic acid. Isonicotinic acid is a metabolite of isoniazid.Isonicotinic acid considered to be inactive isomer of nicotinic acid. Isonicotinic acid is a metabolite of pyridine-4-carboxy hydrazide (isonicotinyl hydrazide; isoniazid) a front-line weapon in the battle against tuberculosis. Isonicotinic acid and its derivatives are used in manufacturing pharmaceuticals and agrochemicals.Used in the biological study of differentiation induced by nicotinic acid, nicotinamide and isonicotinic acid in human leukemia cell lines
調製方法
製造方法Isonicotinic acid is synthesized by continuous oxidation with 4-methylpyridine as raw material and vanadium pentoxide as catalyst. The purity of the industrial product isonicotinic acid is more than 95%, and the yield of the above method is 70-75%. The consumption of 4-methylpyridine per ton of product is 1070kg.
純化方法Crystallise the acid repeatedly from water and dry it under vacuum at 110o or sublime it at 260o/15mm (m 319o). [Beilstein 22 III/IV 518, 22/2 V 188.]
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ChEBI: Isonicotinic acid is a pyridinemonocarboxylic acid in which the carboxy group is at position 4 of the pyridine ring. It has a role as a human metabolite and an algal metabolite. It is a conjugate acid of an isonicotinate.
関連反応
関連ノート
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