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피루브산

피루브산
피루브산 구조식 이미지
카스 번호:
127-17-3
한글명:
피루브산
동의어(한글):
피루브산;피루브산;파이루빅애씨드
상품명:
Pyruvic acid
동의어(영문):
pyruvic;NSC 179;CH3COCOOH;FEMA 2970;PYRUVIC ACID;Pyruvia Acid;ACID PYRUVATE;PyruvicAcid>PYRUVIC ACID BRI;PYRORACEMIC ACID
CBNumber:
CB5257557
분자식:
C3H4O3
포뮬러 무게:
88.06
MOL 파일:
127-17-3.mol

피루브산 속성

녹는점
11-12 °C (lit.)
끓는 점
165 °C (lit.)
밀도
1.267 g/mL at 25 °C (lit.)
FEMA
2970 | PYRUVIC ACID
굴절률
n20/D 1.428(lit.)
인화점
183 °F
저장 조건
2-8°C
용해도
Miscible with chloroform and methanol.
산도 계수 (pKa)
2.39(at 25℃)
물리적 상태
Liquid
색상
Clear colorless to light yellow or amber
수소이온지수(pH)
1.2 (90g/l, H2O, 20℃)
Merck
14,8021
JECFA Number
936
BRN
506211
안정성
Stable. Combustible. Incompatible with strong oxidizing agents, strong bases. Refrigerate.
InChIKey
LCTONWCANYUPML-UHFFFAOYSA-N
CAS 데이터베이스
127-17-3(CAS DataBase Reference)
NIST
Pyruvic acid(127-17-3)
EPA
Propanoic acid, 2-oxo- (127-17-3)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 C
위험 카페고리 넘버 34
안전지침서 26-36/37/39-45-25-27
유엔번호(UN No.) UN 3265 8/PG 2
WGK 독일 3
RTECS 번호 UZ0829800
자연 발화 온도 305 °C
TSCA Yes
위험 등급 8
포장분류 II
HS 번호 29335995
기존화학 물질 KE-27649
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H227 가연성 액체 인화성 액체 구분 4 경고 P210, P280, P370+P378, P403+P235,P501
H314 피부에 심한 화상과 눈에 손상을 일으킴 피부부식성 또는 자극성물질 구분 1A, B, C 위험 P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H318 눈에 심한 손상을 일으킴 심한 눈 손상 또는 자극성 물질 구분 1 위험 P280, P305+P351+P338, P310
예방조치문구:
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P309 노출되었거나 몸이 편치 않은 경우
P310 즉시 의료기관(의사)의 진찰을 받으시오. 삼켰다면 즉시 의료기관(의사)의 도움을 받으시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

피루브산 MSDS


2-Oxopropanoic acid

피루브산 C화학적 특성, 용도, 생산

화학적 성질

Colorless to light yellow liquid

화학적 성질

Pyruvic acid has a sour, acetic odor (similar to acetic acid). It has a pleasant, sour taste with a burning, somewhat sweet note. It tends to darken and decompose unless kept free of minor contaminants and in tightly sealed containers

출처

Isolated from cane sugar fermentation broth and from a few plants; also reported found in peppermint, raw asparagus, leaves and stalk of celery, onion, rutabaga, milk, cream, buttermilk, wheaten bread, blue cheeses, cheddar cheese, cottage cheese, provolone cheese, yogurt, beef, Virginia tobacco, beer, white wine, botrytised wine, cocoa and sake.

용도

pyruvic acid is an alpha hydroxy acid that can be irritating and is considered difficult to work with. It has a larger molecular size than the most commonly used AHAs. Sodium pyruvate is more commonly used, and is an organic salt.

용도

Biochemical research.

정의

A fundamen- tal intermediate in protein and carbohydrate metabolism in the cell.

제조 방법

By distillation of tartaric acid in the presence of potassium acid sulfate as a dehydrating agent; from acetyl chloride and potassium cyanide to yield the nitrile, which is subsequently acid hydrolyzed to the acid; pyruvic acid must be rectified under vacuum.

Aroma threshold values

Aroma characteristics at 1.0%: acidic, sweet, caramellic and sour.

Taste threshold values

Taste characteristics at 5 ppm: sharp acidic, sour fruity, with sour creamy and caramellic nuances.

Biotechnological Applications

Pyruvic acid is a key position in cell metabolism and is involved in many catabolic and anabolic pathways, including glycolysis, gluconeogenesis, amino acid, and protein metabolism. Pyruvic acid is employed for the production of L-tryptophan, L-tyrosine, and 3,4-dihydroxyphenyl alanine in various industries. The diet supplementation with pyruvic acid increased fat loss and minimized the associated loss of body protein. Pyruvic acid is also used in biochemical researches and medicine as a substrate for assaying activities of such enzymes as pyruvate dehydrogenase, pyruvate carboxylase, and pyruvate decarboxylase (Nakazawa et al. 1972; Yamada et al. 1972; Stanko et al. 1992).
Y. lipolytica oxidize glucose and form pyruvic acid (75–80 %) and a-ketoglutaric acid (20–25 %) under thiamine deficiency conditions. The synthesis of the acid was triggered by a decrease in intracellular thiamine concentration to 3.0 lg per 1 g biomass. An approximately 3-fold increase in the amount of the biomass was associated with a subsequent decrease in thiamine content to the level of 1.0 lg per 1 g biomass, whose maximum production of pyruvic acid was 50 g/L in this condition. In addition to glucose, thiamine-auxotrophic yeasts are capable of synthesizing pyruvic acid when grown on glycerol and propionic acid. Technicalgrade glycerol is the most promising raw material for pyruvic acid production. Pyruvic acid was obtained at a concentration of 61 g/L with a yield of 71 % from glycerol (Morgunov et al. 2004; Finogenova et al. 2005).

Purification Methods

Distil it twice, then fractionally crystallise it by partial freezing. [Beilstein 3 IV 1505.]

피루브산 준비 용품 및 원자재

원자재

준비 용품


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