기본 정보
- 표준 SMILES
O=C1CC(=O)NC(=O)N1- InChIKey
HNYOPLTXPVRDBG-UHFFFAOYSA-N- 분자식
- C4H4N2O3
- 평균 분자량
- 128.09 g/mol
- 단동위원소 질량
- 128.02219199
개요
Barbituric acid is a barbiturate, the structure of which is that of perhydropyrimidine substituted at C-2, -4 and -6 by oxo groups. Barbituric acid is the parent compound of barbiturate drugs, although it is not itself pharmacologically active. It has a role as a xenobiotic and an allergen. It is a conjugate acid of a barbiturate, a barbiturate(2-) and a barbiturate(1-).
이름 및 식별자
- 우선 이름
- Barbituric Acid
- IUPAC
- 1,3-diazinane-2,4,6-trione
- 현지명
- 말로닐우레아
- 영어명
- Barbituric acid
- 분자식
- C4H4N2O3
- 분자량
- 128.09
이름 및 동의어
이름 더 보기
데이터베이스 식별자
- CAS
67-52-7- PubChem CID
- 6211
- DTXSID
DTXSID8020129- ChEMBL
CHEMBL574699- ChEBI
CHEBI:16294- UNII
- WQ92Y2793G
- EC Number
- 200-658-0
- Nikkaji
- J348D
물성
구조 계산 물성
- XLogP
- -1.5
- 극성 표면적
- 75.3 Ų
- 수소 결합 공여자 수
- 2
- 수소 결합 수용자 수
- 3
- 회전 가능 결합 수
- 0
- 무거운 원자 수
- 9
- 형식 전하
- 0
- 복잡도
- 168
실험 및 물리화학적 성질
Physical Description
Dry Powder
White powder; [Alfa Aesar MSDS]
Solid
물리화학적 성질
- 녹는점
- 248 · 248-252 °C (dec.) (lit.)
- 끓는 점
- 260 ℃ · 260℃ (decomposition)
- 밀도
- 1.6006 · 1.6006 (rough estimate)
- 굴절률
- 1.461 · 1.4610 (estimate)
- 인화점
- 150 °C · 150 °C
- 저장 조건
- 30 °C · Store below +30°C.
- 용해도
- 11.45 g/L · 11.45g/L
- 물리적 상태
- 분말/고체
- 산도 계수 (pKa)
- 4.01 · 4.01(at 25℃)
- 색상
- 가벼운 크림
- 냄새
- 냄새 없는
- 수소이온지수(pH)
- 2 · 2-3 (50g/l, H2O, 60℃)
- 수용성
- 142 g/L · 142g/L(20℃)
- Merck
- 14 · 14,963
- BRN
- 120502 · 120502
- 화장품 원료 기능
- 피부 컨디셔닝 - 보습제
- InChI
- 1S/C4H4N2O3/c7-2-1-3(8)6-4(9)5-2/h1H2,(H2,5,6,7,8,9)
- InChIKey
- HNYOPLTXPVRDBG-UHFFFAOYSA-N
- SMILES
- O=C1CC(=O)NC(=O)N1
- NIST
- Barbituric acid(67-52-7)
- EPA
- Barbituric acid (67-52-7)
화학적 성질
cream coloured fine crystalline powder. Odorless. Soluble in water and ether, insoluble in water and alcohol.
안전 및 규제
GHS 분류
GHS Classification
This chemical does not meet GHS hazard criteria for 35.7% (60 of 168) of reports.
Warning
H315 (63.1%): 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 168 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
유해성 정보
Regulatory Information
Chemical: 2,4,6(1H,3H,5H)-Pyrimidinetrione
2,4,6(1H,3H,5H)-Pyrimidinetrione is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 2,4,6(1H,3H,5H)-Pyrimidinetrione 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: 25-11-2019 https://echa.europa.eu/registration-dossier/-/registered-dossier/13234
2,4,6(1H,3H,5H)-Pyrimidinetrione: Does not have an individual approval but may be used under an appropriate group standard
Hazards Summary
Unsubstituted barbituric acid has no hypnotic properties. [Merck Index] Causes somnolence, impaired liver function tests, depressed renal function tests, and other changes in urine composition in acute inhalation studies of rats; Causes somnolence and ataxia in oral lethal-dose studies of mice and rats; Causes somnolence and impaired liver function tests in 30-day intermittent inhalation studies of rats; [RTECS] An irritant; [Alfa Aesar MSDS]
독성 정보
안전 데이터
- wgk
- 1
- tsca
- TSCA listed
- rtecs
- CP8000000
- 독성
- LD50 orally in Rabbit: > 5000 mg/kg
- HS 번호
- 29335200
- risk_code
- 36/37/38
- safety_code
- 24/25
- 기존화학 물질
- KE-3429497-3-1
- 스토리지 클래스
- 11 - Combustible Solids
화학 및 산업
용도 및 제조
General Manufacturing Information
Synthetic Dye and Pigment Manufacturing
2,4,6(1H,3H,5H)-Pyrimidinetrione: ACTIVE
응용 분야
일반 설명Barbituric acid is a useful acid for organic and drug syntheses. Its dihydrate form can be synthesized from barbituric acid via crystallization from aqueous solution. Crystal structure of barbituric acid (in tautomeric form) has been investigated by a three dimensional fourier transform method. Its enol crystal form has been reported to be thermodynamically stable.
제조 방법
Barbituric acid is derived By the reaction of diethyl malonate and urea. First put Urea in a reaction tank containing methanol ,heat , reflux , dissolve, then add the dried diethyl malonate and sodium methoxide, the reaction is refluxed at 66-68°C for 4-5h, after distillation to recover methanol, cooling to 40-50°C, add dilute hydrochloric acid to adjust to pH 1-2.Cool to room temperature, throw to obtain crude, wash with distilled water once, dry to get crude , and then purify with water and activated carbon, dry to obtain products. Industrial barbituric acid is white or pink crystalline powder, strongly acidic, more than 98% content, melting point ≥245°C. Material consumption fixed: diethyl malonate 1098kg/t, urea 476kg/t, hydrochloric acid (reagent grade III) 681kg/t, sodium methanol (28%) 369kg/t, methanol 1025kg/t.
상·하류 제품 정보
상류 원료
하류 제품
공급사50 곳
추가 설명
정의ChEBI: Barbituric acid is a barbiturate, the structure of which is that of perhydropyrimidine substituted at C-2, -4 and -6 by oxo groups. Barbituric acid is the parent compound of barbiturate drugs, although it is not itself pharmacologically active. It has a role as an allergen and a xenobiotic. It is a conjugate acid of a barbiturate, a barbiturate(2-) and a barbiturate(1-).
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