Reactive Blue 19

Description

Reactive Blue 19 · CAS 2580-78-1 · C22H16N2Na2O11S3. UNII L51IMM9UP9. Solubility: 10 to 50 mg/mL at 70 °F (NTP, 1992); Color Additive Status: 73.3121; Color Additive Status: 73.3127.

Identification

CAS Registry Number	2580-78-1
PubChem CID	17409
Molecular formula	C22H16N2Na2O11S3
IUPAC name	disodium;1-amino-9,10-dioxo-4-[3-(2-sulfonatooxyethylsulfonyl)anilino]anthracene-2-sulfonate
UNII (FDA)	L51IMM9UP9

Computed Descriptors

Molecular Weight	626.5
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	13
Rotatable Bond Count	6
Exact Mass	625.97116142
Monoisotopic Mass	625.97116142
Topological Polar Surface Area	255
Heavy Atom Count	40
Formal Charge	0
Complexity	1210

Physical & Chemical Properties

Solubility	10 to 50 mg/mL at 70 °F (NTP, 1992)
Color Additive Status	73.3121
Color Additive Status	73.3127

Physical description & handling notes

• Reactive blue 19 is a fine blue-black powder. (NTP, 1992)
• Blue-black solid; [CAMEO] Dark powder; [MSDSonline]
• Decomposes at approximately 581 °F (NTP, 1992)
• C.I. Reactive Blue 19
• Devices
• Contact lenses use only.

Regulatory Status

Regulatory & Food Contact	FDA Regulatory Status of Color Additives: Devices
GHS notification summary	58.8% (50 / 85)

GHS Hazard Classification

GHS notification summary	58.8% (50 / 85)
Reported hazard statements	H319 (24.7%), H412 (10.6%)

Documented Uses

• Used for dyeing and printing cellulosic fibers; [HSDB]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• DYE FOR DYEING & PRINTING OF CELLULOSIC FIBERS
• PROBABLY BY CONDENSATION OF 1-AMINO-4-BROMO-2-ANTHRAQUINONESULFONIC ACID WITH 3-((SULFOXYETHYL)SULFONYL)ANILINE
• (1979) PROBABLY GREATER THAN 2.27X10+6 GRAMS
• (1981) PROBABLY GREATER THAN 2.27X10+6 GRAMS

Synonyms

Reactive Blue 19; 2580-78-1; C.I. Reactive Blue 19; CCRIS 3736; HSDB 5534; UNII-L51IMM9UP9; EINECS 219-949-9; CI Reactive Blue 19, disodium salt; L51IMM9UP9; C.I. REACTIVE BLUE 19 [HSDB]; DTXSID5025992; APOLLOZOL BRILLIANT BLUE R; EC 219-949-9; SUMIFIX BRILLIANT BLUE R SPECIAL LIQUID; 1-AMINO-4-(3-(.BETA.-SULFATOETHYLSULFONYL)ANILINO)-2-ANTHRAQUINONESULFONIC ACID DISODIUM SALT; 1-AMINO-4-(3-(BETA-SULFATOETHYLSULFONYL)ANILINO)-2-ANTHRAQUINONESULFONIC ACID DISODIUM SALT

Frequently Asked Questions

What are the CAS number and molecular formula of Reactive Blue 19?

CAS 2580-78-1; molecular formula C22H16N2Na2O11S3; molecular weight — g/mol.

What other names is Reactive Blue 19 known by?

Reactive Blue 19, 2580-78-1, C.I. Reactive Blue 19, CCRIS 3736, HSDB 5534, UNII-L51IMM9UP9.

What is the regulatory status of Reactive Blue 19?

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

Is Reactive Blue 19 classified as hazardous?

58.8% of GHS notifications report no hazard classification (50 of 85).

What are the key physical properties of Reactive Blue 19?

Solubility: 10 to 50 mg/mL at 70 °F (NTP, 1992); Color Additive Status: 73.3121; 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.