Reactive Blue 21

Description

Reactive Blue 21 · CAS 12236-86-1 · C40H25CuN9O14S5. UNII 377M303BWG. Color Additive Status: 73.3127.

Identification

CAS Registry Number	12236-86-1
PubChem CID	72941500
Molecular formula	C40H25CuN9O14S5
IUPAC name	copper 33-[[4-(2-hydroxyethylsulfonyl)phenyl]sulfamoyl]-2,11,20,29,39,40-hexaza-37,38-diazanidanonacyclo[28.6.1.13,10.112,19.121,28.04,9.013,18.022,27.031,36]tetraconta-1,3(40),4(9),5,7,10,12(39),13(18),14,16,19,21,23,25,27,29,31(36),32,34-nonadecaene-6,15,24-trisulfonic acid
UNII (FDA)	377M303BWG

Computed Descriptors

Molecular Weight	1079.6
Hydrogen Bond Donor Count	5
Hydrogen Bond Acceptor Count	23
Rotatable Bond Count	9
Exact Mass	1077.942049
Monoisotopic Mass	1077.942049
Topological Polar Surface Area	385
Heavy Atom Count	69
Formal Charge	0
Complexity	2430

Physical & Chemical Properties

Color Additive Status	73.3127

Physical description & handling notes

• C.I. Reactive Blue 21
• Devices
• Contact lenses use only.
• 2 - The year approved is based on the date listed in the "Confirmation of Effective Date" notice for the action as published in the Federal Register.

Regulatory Status

Regulatory & Food Contact	FDA Regulatory Status of Color Additives: Devices
GHS notification summary	31.5% (17 / 54)

GHS Hazard Classification

GHS notification summary	31.5% (17 / 54)
Reported hazard statements	H315 (68.5%), H319 (68.5%), H335 (68.5%)

Synonyms

Reactive Blue 21; 12236-86-1; C.I. Reactive Blue 21; 377M303BWG; SUMIFIX TURQUOIS BLUE G; SUNZOL TURQUOISE BLUE G; REMAZOL TURQUOISE BLUE G; DTXSID10893743; REMAZOL TURQUOISE BLUE G 133; Copper(2+) 2-((4-((2-hydroxyethyl)sulfonyl)phenyl)sulfamoyl)-9,16,23-trisulfophthalocyanine-29,31-diide; RefChem:178696; DTXCID201323768; Diamira Turquoise Blue; Remasol Turquoise Blue B; Remasol Turquoise Blue G; Sumifix Turquoise Blue G

Frequently Asked Questions

What are the CAS number and molecular formula of Reactive Blue 21?

CAS 12236-86-1; molecular formula C40H25CuN9O14S5; molecular weight — g/mol.

What other names is Reactive Blue 21 known by?

Reactive Blue 21, 12236-86-1, C.I. Reactive Blue 21, 377M303BWG, SUMIFIX TURQUOIS BLUE G, SUNZOL TURQUOISE BLUE G.

What is the regulatory status of Reactive Blue 21?

Documented regulatory listings: FDA Regulatory Status of Color Additives: Devices.

Is Reactive Blue 21 classified as hazardous?

31.5% of GHS notifications report no hazard classification (17 of 54).

What are the key physical properties of Reactive Blue 21?

Color Additive Status: 73.3127.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.