23647-14-5

Product Name: SPADNS

Formula: C16H13N2NaO11S3

Synonyms: 1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6- disulfonic acid trisodium salt;1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6-disulfonic acid trisodium salt;2-(4-Sulfophenylazo)-1,8-dihydroxy-3,6-naphthalene disulfonic acid trisodium salt;2-(4-Sulfophenylazo)chromotropic acid trisodium salt;SPADNS

Inquiry

CHEMICAL AND PHYSICAL PROPERTIES SAFETY INFORMATION COMPUTED DESCRIPTORS RELATED SUPPLIERS

CHEMICAL AND PHYSICAL PROPERTIES

Physical Description	Red solid; [Merck Index] Dark red powder; [Sigma-Aldrich MSDS]
Chemical Classes	Dyes -> Azo Dyes

SAFETY INFORMATION

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up.

COMPUTED DESCRIPTORS

Molecular Weight	570.4 g/mol
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	13
Rotatable Bond Count	2
Exact Mass	569.90615547 g/mol
Monoisotopic Mass	569.90615547 g/mol
Topological Polar Surface Area	262 Å²
Heavy Atom Count	35
Formal Charge	0
Complexity	979
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
Covalently-Bonded Unit Count	4
Compound Is Canonicalized	Yes