CAS 6371-76-2

D&C Red No. 31

Description:

D&C Red No. 31, also known by its chemical name as 1-(2-hydroxy-1-naphthylazo)-2-naphthol-3,6-disulfonic acid, is a synthetic azo dye primarily used in cosmetics and personal care products. It is characterized by its vibrant red color, which is attributed to the azo functional group (-N=N-), a common feature in many dyes that contributes to their chromatic properties. This compound is water-soluble, making it suitable for various applications, including lipsticks, blushes, and other formulations where color stability and intensity are essential. D&C Red No. 31 is subject to regulatory oversight, particularly by the U.S. Food and Drug Administration (FDA), which evaluates its safety for use in cosmetics. It is important to note that while it is approved for use in certain applications, it may not be suitable for all types of products, particularly those intended for use around the eyes. As with many synthetic dyes, there may be concerns regarding potential allergic reactions or sensitivities in some individuals.

Formula: C₁₇H₁₂N₂O₃Ca

InChI: InChI=1S/C17H12N2O3.Ca/c20-16-14(17(21)22)10-11-6-4-5-9-13(11)15(16)19-18-12-7-2-1-3-8-12;/h1-10,20H,(H,21,22);

InChI key: InChIKey=HLLMZVCVUHKMMD-UHFFFAOYSA-N

SMILES: N(=NC1=CC=CC=C1)C=2C3=C(C=C(C(O)=O)C2O)C=CC=C3.[Ca]

Synonyms:

• (5Z)-5-(4-{2-[2-methoxy-4-(prop-2-en-1-yl)phenoxy]ethoxy}benzylidene)-3-methyl-2-thioxo-1,3-thiazolidin-4-one
• 11067 Red
• 2-Hydroxy-1-phenylazo-3-naphthoic acid calcium salt
• 2-Naphthalenecarboxylic acid, 3-hydroxy-4-(2-phenyldiazenyl)-, calcium salt (2:1)
• 2-Naphthalenecarboxylic acid, 3-hydroxy-4-(phenylazo)-, calcium salt (2:1)
• Brilliant Lake M
• Brilliant Red Toner RA
• Brilliant Scarlet G
• Calcium 1-phenylazo-2-hydroxy-3-naphthoate
• Calcium 2-hydroxy-1-(phenylazo)-3-naphthoate
• Calcium bis(1-phenylazo-2-hydroxy-3-naphthalenecarboxylate)
• D & C Red no. 31
• D and C Red No. 31
• D&C Red #31
• D&C Red No. 31 Calcium Lake
• Dainichi Brilliant Scarlet G
• Dainichi Brilliant Scarlet RG
• Japan Red 219
• Japan Red No. 219
• Pigment Red 64:1
• Pigment Scarlet Toner RB
• R 219
• Red No. 219
• Symuler Brilliant Scarlet G
• Topaz Toner R 5
• C.I. 15800 Ca Salt
• C.I. Pigment Red 64, calcium salt
• C.I. Pigment Red 64, calcium salt (2:1)
• C.I. Pigment Red 64, calcium salt (2:1) (8CI)

BRilliant lake red r calcium salt

CAS: 6371-76-2

Formula: C₃₄H₂₂CaN₄O₆

Color and Shape: Solid

Molecular weight: 622.6397

Ref: IN-DA003OJR

D&C Red no. 31

CAS: 6371-76-2

D & C Red no. 31 is an agent of dye.

Formula: C₃₄H₂₂CaN₄O₆

Color and Shape: Solid

Molecular weight: 622.65

Ref: TM-T20043

Pigment Red 64 (Calcium Salt) (Technical Grade)

CAS: 6371-76-2

Formula: C₁₇H₁₁N₂O₃·Ca

Color and Shape: Orange To Red

Ref: TR-P437780

Brilliant lake red R calcium

CAS: 6371-76-2

Brilliant lake red R calcium salt is an orange-red pigment with a particle size of 0.5 to 12 microns. It has the functional groups sulfamic acid, hydroxyl group and colorant. The monomers are dodecyl, and the skeleton is polyvinyl. Brilliant lake red R calcium salt has been used as a colorant in ink, plastics, paint and other products. This product can be analyzed using analytical methods such as gravimetric analysis, uv absorption spectroscopy, and electrophotography.

Formula: C₃₄H₂₂CaN₄O₆

Purity: Min. 95%

Molecular weight: 622.65 g/mol

Ref: 3D-GAA37176