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Merck
CN

C1022

Carmine

≥42.0% purity, powder

Synonym(s):

Alum lake of carminic acid, Cochineal, Nacarat, Natural Red 4

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About This Item

CAS Number:
1390-65-4
MDL number:
MFCD32869252
UNSPSC Code:
12171500
NACRES:
NA.47
EC Number:
215-724-4
Colour Index Number:
75470

Key Documents

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Product Name

Carmine, powder, ≥42.0% (UV-vis)

SMILES string

O1C(C(C(C(C1c2c(c3c(c(c2O)O)C(=O)c4c(c(c(c(c4)O)C(=O)O)C)C3=O)O)O)O)O)CO

InChI

1S/C22H20O13/c1-4-8-5(2-6(24)9(4)22(33)34)13(25)10-11(15(8)27)16(28)12(18(30)17(10)29)21-20(32)19(31)14(26)7(3-23)35-21/h2,7,14,19-21,23-24,26,28-32H,3H2,1H3,(H,33,34)

InChI key

DGQLVPJVXFOQEV-UHFFFAOYSA-N

assay

≥42.0% (UV-vis)

form

powder

color

red

solubility

ammonium hydroxide: 1 mg/mL

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

200

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Application

Carmine has been used for the staining of mammary glands. It has been used for the staining of the chromosomes.

General description

Carmine is a red compound and is generally used with aluminum, iron and other metal salts to enhance its activity. During smear preparation, it is required for chromatin staining in fresh material. In presence of aluminum chloride, it is used for the staining of glycogen.

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS7933
SHBR8683
SHBR8682
SHBS2672
SHBR3624

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Williams TM, et al.
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Improper chromosome synapsis is associated with elongated RAD51 structures in the maize desynaptic2 mutant.
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