카바민 산

한글명:카바민 산

카스 번호1260-17-9

상품명:Carminic Acid

CBNumberCB1428489

분자식C22H20O13

포뮬러 무게492.39

MOL 파일1260-17-9.mol

동의어(한글)

카르바민산

카바민산

화학적 성질

녹는점	136 °C
끓는 점	506.2°C (rough estimate)
알파	15654 +51.6° (water)
밀도	1.4504 (rough estimate)
굴절률	1.6000 (estimate)
인화점	12℃
저장 조건	room temp
용해도	30g/L
색상 색인 번호	75470
산도 계수 (pKa)	1.62±0.20(Predicted)
물리적 상태	결정성 분말
색상	빨간색에서 진한 빨간색까지
수소이온지수(pH)	1.6 (10g/l, H2O, 20℃)
냄새	냄새 없는
pH 범위	4.8 - 6.2
optical activity	[α]20/D +3.1°, c = 1 in H2O
수용성	1.298g/L(상온)
Merck	14,1843
BRN	71651
LogP	1.532 (est)
CAS 데이터베이스	1260-17-9
EPA	C.I. Natural Red 4 (1260-17-9)

위험 및 안전 성명

안전지침서

22-24/25

WGK 독일

HS 번호

32129000

유해 물질 데이터

1260-17-9(Hazardous Substances Data)

NFPA 704:

	0
3		0

그림문자(GHS)

카바민 산 화학적 특성, 용도, 생산

화학적 성질
Cochineal extract is a concentrated solution obtained after removing alcohol from an aqueous–alcoholic extract of cochineal (Dactylopius coccus Costa, also called Coccus cati L.). This extract is used as a color additive, the primary colorant being carminic acid.
역사
CI Natural Red 4(CI 75470), is a red dye occurring as a glycoside in the body of the cochineal insect Dactylopius coccus of the order Homoptera, family Coccidae. This insect is native to Central and South America. The Aztecs had extracted the dye from the insect centuries before the coming of the Spaniards. For breeding purposes, the insects were collected in the autumn and carefully protected during the winter months. Cochineal was harvested after three months, and then the bugs were killed by immersion in hot water, by placing in hot ovens, or by exposure to the hot sun. The latter method produced the highest quality dye. At present, Peru and the Canary Islands are the main source of the dye. Until the advent of synthetic dyes, the principal use for carminic acid was for dyeing tin-mordanted wool or silk. Its aluminum lake, carmine, finds use in the coloring of foods.
용도
Carminic acid (C.I. 75470) For staining nuclei in histological sections. Used to prepare staining solutions.
CAS 1260-17-9, pH 1.6 (10?g/l, H?O, 20?°C).
정의
ChEBI: A tetrahydroxyanthraquinone that is that is 1,3,4,6-tetrahydroxy-9,10-anthraquinone substituted by a methyl group at position 8, a carboxy group at position 7 and a 1,5-anhydro-D-glucitol moiety at position 2 via a C-gly osidic linkage. It is a natural dye isolated from several insects such as Dactylopius coccus.
일반 설명
Dark purplish-brown mass or bright red or dark red powder. Darkens at 248°F. Deep red color in water. Yellow to violet in acidic aqueous solutions.
공기와 물의 반응
Soluble in water [Hawley].
반응 프로필
CARMINE neutralizes bases in exothermic reactions. Incompatible with strong oxidizing agents.
화재위험
Flash point data for CARMINE are not available. CARMINE is probably combustible.
Purification Methods
Carminic acid forms red prisms from EtOH. It gives a red colour in Ac2O and yellow to violet in acidic solution. UV: max (H2O) 500nm ( 6,800); (0.02N HCl) 490-500nm ( 5,800) and (0.0001N NaOH) 540nm ( 3,450). IR: max (Nujol) 1708s, 1693s, 1677m, 1648m, 1632m, 1606s, 1566s, 1509 cm-1. Periodate oxidation is complete after 4hours at 0o with the consumption of 6.2 mols. The tetra-O-methyl carminate has m 186-188o (yellow needles from *C6H6/pet ether). [IR: Ali & Haynes J Chem Soc 1033 1959, Bhatia & Venkataraman Indian J Chem 3 (2) 92 1965, Synthesis: Davis & Smith Biochemical Preparations 4 38 1955, Beilstein 18 III/1V 6697.]

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