基本情報
- 標準SMILES
O=C1CC(=O)NC(=S)N1- InChIKey
RVBUGGBMJDPOST-UHFFFAOYSA-N- 分子式
- C4H4N2O2S
- 平均分子量
- 144.15 g/mol
- 単同位体質量
- 143.99934837
概要
2-thiobarbituric acid is a barbiturate, the structure of which is that of barbituric acid in which the oxygen at C-2 is replaced by sulfur. It has a role as a reagent and an allergen.
名称と識別子
- 優先名称
- Thiobarbituric acid
- IUPAC
- 2-sulfanylidene-1,3-diazinane-4,6-dione
- 現地名
- 2-チオバルビツル酸
- 英語名
- 2-Thiobarbituric acid
- 分子式
- C4H4N2O2S
- 分子量
- 144.15
名称と別名
名称をさらに表示
データベース識別子
- CAS
504-17-6- PubChem CID
- 2723628
- DTXSID
DTXSID7060124- ChEMBL
CHEMBL584805- ChEBI
CHEBI:33202- UNII
- M1YZW5SS7C
- EC Number
- 207-985-8
- Nikkaji
- J12.869D
物性
構造計算による物性
- XLogP
- -0.9
- 極性表面積
- 90.3 Ų
- 水素結合供与体数
- 2
- 水素結合受容体数
- 3
- 回転可能結合数
- 0
- 重原子数
- 9
- 形式電荷
- 0
- 複雑度
- 171
実験および物理化学的性質
物理化学的性質
- 融点
- 245 °C · 245 °C (dec.)(lit.)
- 比重(密度)
- 1.451 · 1.451 (estimate)
- 屈折率
- 1.769 · 1.7690 (estimate)
- 貯蔵温度
- 2 · Inert atmosphere,2-8°C
- 溶解性
- 50 g/l · 50g/l 微溶性
- 酸解離定数(Pka)
- 3.96 · 3.96±0.20(Predicted)
- 外見
- 液体
- 色
- 無色透明
- PH
- 1.7 · 1.7-1.9 (10g/l, H2O, 20℃)
- 水溶解度
- 6 g/L · <6 g/L (20 °C)
- BRN
- 120663 · 120663
- 安定性
- 安定。強力な酸化剤とは相容れない。
- InChI
- 1S/C4H4N2O2S/c7-2-1-3(8)6-4(9)5-2/h1H2,(H2,5,6,7,8,9)
- InChIKey
- RVBUGGBMJDPOST-UHFFFAOYSA-N
- SMILES
- O=C1CC(=O)NC(=S)N1
- CAS データベース
- 504 · 504-17-6(CAS DataBase Reference)
- NISTの化学物質情報
- 4 · 4,6(1H,5h)-pyrimidinedione, dihydro-2-thioxo-(504-17-6)
- EPAの化学物質情報
- 4 · 4,6(1H,5H)-Pyrimidinedione, dihydro-2-thioxo- (504-17-6)
化学的性質
化学的特性Off-White to Yellow Powder. soluble in hot water, alcohol, ether, alkali and sodium carbonate solution, slightly soluble in water.
安全と法規制
GHS分類
GHS Classification
This chemical does not meet GHS hazard criteria for 5.3% (1 of 19) of reports.
Warning
H315 (94.7%): 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 19 reports by companies from 9 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: 4,6(1H,5H)-Pyrimidinedione, dihydro-2-thioxo-
REACH registered substance: 2-thiobarbituric acid (EC: 207-985-8)
2-Thiobarbituric acid: Does not have an individual approval but may be used under an appropriate group standard
安全データ
- F
- 13-23
- wgk
- 2
- tsca
- TSCA listed
- rtecs
- CQ7700000
- ridadr
- UN 3335
- hs_code
- 29335995
- risk_code
- 36/37/38
- 化審法
- (5)-930
- hazard_code
- Xi
- safety_code
- 22-24/25-37/39-26
- ストレージクラス
- 11 - Combustible Solids
化学と産業
用途と製造
応用分野
用途脂肪の酸化程度の測定試薬。
使用2-Thiobarbituric acid has been used to measure malondialdehyde (MDA) in lipid peroxidation assay.
一般的な説明2-Thiobarbituric acid is a molecule made up of heteroatoms: nitrogen, sulphur and oxygen.
調製方法
製造方法2-thiobarbituric acid was synthesized by the reaction of diethyl malonate with thiourea. Dissolve thiourea in methanol, add sodium methoxide and diethyl malonate, heat under reflux for 4-5h, then distill under reduced pressure to recover methanol to the end, and add hydrochloric acid to acidify to pH 1-2 after cooling. After standing overnight, thiobarbituric acid crystals were precipitated, filtered, and recrystallized with water to obtain the pure product.
純化方法Crystallise it from water. [Beilstein 24 H 476, 24 I 414, 24 II 275, 24 III/IV 1884.]
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: 2-thiobarbituric acid is a barbiturate, the structure of which is that of barbituric acid in which the oxygen at C-2 is replaced by sulfur. It has a role as a reagent and an allergen.
関連反応
関連ノート
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