Carminic Acid
- CAS No.
- 1260-17-9
- Chemical Name:
- Carminic Acid
- Synonyms
- CI 75470;E120;CARMINE RED;coccinic acid;CARMINE ALUMINUM LAKE;Carminic;C.I.Naturalred4;NSC 326224;CARMINE 2G;CARMINE 40
- CBNumber:
- CB1428489
- Molecular Formula:
- C22H20O13
- Molecular Weight:
- 492.39
- MDL Number:
- MFCD00167028
- MOL File:
- 1260-17-9.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 136 °C |
|---|---|
| alpha | 15654 +51.6° (water) |
| Boiling point | 506.2°C (rough estimate) |
| Density | 1.4504 (rough estimate) |
| bulk density | 490kg/m3 |
| refractive index | 1.6000 (estimate) |
| Flash point | 12℃ |
| storage temp. | room temp |
| solubility | 30g/l |
| Colour Index | 75470 |
| form | Crystalline Powder |
| pka | 1.62±0.20(Predicted) |
| color | Red to dark red |
| PH | 1.6 (10g/l, H2O, 20℃) |
| Odor | Odorless |
| PH Range | 4.8 - 6.2 |
| optical activity | [α]20/D +3.1°, c = 1 in H2O |
| Water Solubility | 1.298g/L(room temperature) |
| λmax | 495 nm |
| ε(extinction coefficient) |
≥13000 at 222-228 nm in ethanol at 0.03g/L ≥18000 at 275-281nm in ethanol at 0.03g/L |
| Merck | 14,1843 |
| BRN | 71651 |
| Major Application |
diagnostic assay manufacturing hematology histology |
| InChIKey | DGQLVPJVXFOQEV-JNVSTXMASA-N |
| SMILES | Cc1c(C(O)=O)c(O)cc2C(=O)c3c(O)c(O)c([C@@H]4O[C@H](CO)[C@@H](O)[C@H](O)[C@H]4O)c(O)c3C(=O)c12 |
| LogP | 1.532 (est) |
| CAS DataBase Reference | 1260-17-9 |
| Substances Added to Food (formerly EAFUS) | COCHINEAL EXTRACT (COCCUS CACTI L.) |
| FDA UNII | CID8Z8N95N |
| EPA Substance Registry System | C.I. Natural Red 4 (1260-17-9) |
| UNSPSC Code | 85151701 |
| NACRES | NA.47 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS05 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H314 | |||||||||
| Precautionary statements | P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Safety Statements | 22-24/25 | |||||||||
| WGK Germany | 2 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 32129000 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazardous Substances Data | 1260-17-9(Hazardous Substances Data) | |||||||||
| NFPA 704 |
|
Carminic Acid price More Price(50)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 229253 | Carminic acid | 1260-17-9 | 1g | $331 | 2026-04-30 | Buy |
| Sigma-Aldrich | PHL82865 | Carminic acid phyproof? Reference Substance | 1260-17-9 | 10MG | $486 | 2026-04-30 | Buy |
| Sigma-Aldrich | 11298 | Carminic acid analytical standard | 1260-17-9 | 25mg | $269 | 2026-04-30 | Buy |
| Sigma-Aldrich | 03320585 | Carminic acid primary reference standard | 1260-17-9 | 25MG | $334 | 2026-04-30 | Buy |
| TCI Chemical | C0782 | Carminic Acid (Natural dye) | 1260-17-9 | 5g | $168 | 2026-04-30 | Buy |
Carminic Acid Chemical Properties, Uses, Production
Chemical Properties
red to dark red crystalline powder
Chemical Properties
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.
History
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.
Uses
Carminic acid (C.I. 75470) For staining nuclei in histological sections. Used to prepare staining solutions.
CAS 1260-17-9, pH 1.6 (10g/l, HO, 20°C).
Uses
A red glucosidal hydroxyanthrapurin, it is produced naturally within some insects as a defense mechanism.
Uses
antineoplastic, glucosyltransferase inhibitor
Definition
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.
General Description
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.
Air & Water Reactions
Soluble in water [Hawley].
Reactivity Profile
CARMINE neutralizes bases in exothermic reactions. Incompatible with strong oxidizing agents.
Fire Hazard
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.]
Carminic Acid Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Chemsky（shanghai）International Co.,Ltd. | 021-50135380 | shchemsky@sina.com | China | 32273 | 50 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Spectrum Chemical Manufacturing Corp. | 021-021-021-67601398-809-809-809 15221380277 | marketing_china@spectrumchemical.com | China | 9643 | 60 |
| Wuhan Fortuna Chemical Co., Ltd | 027-59207852 13308628970 | buy@fortunachem.com | China | 2689 | 58 |
| Thermo Fisher Scientific | 800-810-5118 | cnchemical@thermofisher.com | China | 17752 | 75 |
View Latest Price from Carminic Acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-17 | Carminic Acid
1260-17-9
|
1kg | 99% | 1000kg | WUHAN FORTUNA CHEMICAL CO., LTD | ||
 |
2026-07-27 | Carminic acid
1260-17-9
|
$30.00-72.00 | 90.52% | 10g | TargetMol Chemicals Inc. | ||
 |
2026-03-20 | Carminic Acid
1260-17-9
|
$10.00 | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd |
-
- Carminic Acid
1260-17-9
- 99%
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- Carminic acid
1260-17-9
- $30.00-72.00
- 90.52%
- TargetMol Chemicals Inc.
-
- Carminic Acid
1260-17-9
- $10.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
