Bromocresol Purple
Preliminary reference disclaimer
This preliminary safety reference is generated from structured MolGraph catalog fields and public reference-style data. It is not a supplier-issued Safety Data Sheet and should not be used as a substitute for supplier-issued documentation, workplace safety review, transport classification, or regulatory compliance decisions. For supplier SDS or COA, submit a documentation request through MolGraph.
Preliminary safety reference
Available
Supplier-issued SDS
Available by request
COA
Available by RFQ / lot confirmation
Transport classification
Requires shipment review
CAS Number
115-40-2
Chemical name
Bromocresol Purple
Molecular formula
C21H16Br2O5S
Molecular weight
540.2 g/mol
Synonyms
BROMCRESOL PURPLE; HSDB 7729; Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2-bromo-6-methyl-; Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-bromo-6-methyl-; Purple, Bromcresol; Purple, Bromocresol; Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2-bromo-6-methyl)-, S,S-dioxide; 3,3-Bis(3-bromo-4-hydroxy-5-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide; 5,5'-Dibromo-o-cresolsulfonphthalein; Indicator bromocresol purple; 4,4'-(3H-2,1-BENZOXATHIOL-3-YLIDENE)BIS(2-BROMO-6-METHYLPHENOL) S,S-DIOXIDE; C21H16Br2O5S
InChIKey
ABIUHPWEYMSGSR-UHFFFAOYSA-N
PubChem CID
8273
Signal word
Warning
Catalog reference cue; confirm supplier documentation before use.
Hazard statements
H315, H319, H335
Catalog reference cue; confirm supplier documentation before use.
Melting Point
241.5 °C
Catalog reference value; verify against supplier SDS before use.
pKa
6.3
Catalog reference value; verify against supplier SDS before use.
XLogP
5.1
Catalog reference value; verify against supplier SDS before use.
Shipment review
Shipment details require review before fulfillment.
Transport classification must be confirmed using supplier SDS and shipment documentation before dispatch.