Naphthol AS-BI

Modify Date: 2026-07-01 11:08:48

Naphthol AS-BI Structure
Naphthol AS-BI structure
Common Name Naphthol AS-BI
CAS Number 1237-75-8 Molecular Weight 372.21300
Density 4.01 g/mL at 25 °C(lit.) Boiling Point 467.3ºC at 760mmHg
Molecular Formula C18H14BrNO3 Melting Point 1387 °C
MSDS N/A Flash Point 236.4ºC

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 4.01 g/mL at 25 °C(lit.)
Boiling Point 467.3ºC at 760mmHg
Melting Point 1387 °C
Molecular Formula C18H14BrNO3
Molecular Weight 372.21300
Flash Point 236.4ºC
Exact Mass 371.01600
PSA 58.56000
LogP 4.64180
Vapour Pressure 5.28E-07mmHg at 25°C
Index of Refraction 1.764
InChIKey JIEINYQEXWLMCU-UHFFFAOYSA-N
SMILES COc1ccccc1NC(=O)c1cc2cc(Br)ccc2cc1O
Storage condition 2-8°C

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Hazard Codes Xn,Xi
Risk Phrases R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Phrases S26-S37/39
RIDADR UN3288
WGK Germany 3
RTECS ZG3417500
Packaging Group III
Hazard Class 6.1
HS Code 2924299090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

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Naphthol AS-BI Structure

Naphthol AS-BI

CAS#:1237-75-8

Learn More
Literature: DE396519 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 14, p. 1021

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  2

DownStream  0

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2924299090
Summary 2924299090. other cyclic amides (including cyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

 Naphthol AS-BIBioassay

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This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Primary cell-based high-throughput screening assay for identification of compounds th...
Source: Johns Hopkins Ion Channel Center
Target: regulator of G-protein signaling 4 isoform 2 [Homo sapiens]
External Id: JHICC_RGS_Act_HTS
Name: Luminescence-based cell-based primary high throughput screening assay to identify ago...
Source: The Scripps Research Institute Molecular Screening Center
Target: mu-type opioid receptor isoform MOR-1 [Homo sapiens]
External Id: OPRM1-OPRD1_AG_LUMI_1536_1X%ACT PRUN
Name: QFRET-based biochemical primary high throughput screening assay to identify exosite i...
Source: The Scripps Research Institute Molecular Screening Center
Target: disintegrin and metalloproteinase domain-containing protein 17 preproprotein [Homo sapiens]
External Id: ADAM17_INH_QFRET_1536_1X%INH PRUN
Name: Fluorescence-based cell-based primary high throughput screening assay to identify ago...
Source: The Scripps Research Institute Molecular Screening Center
Target: muscarinic acetylcholine receptor M1 [Homo sapiens]
External Id: CHRM1_AG_FLUO8_1536_1X%ACT PRUN
Name: High throughput fluorescence intensity-based biochemical assay to screen for small mo...
Source: University of Pittsburgh Molecular Library Screening Center
Target: furin (paired basic amino acid cleaving enzyme), isoform CRA_a [Homo sapiens]
External Id: MH080376 Biochemical HTS for Inhibitors of the Proprotein Convertase Furin.
Name: Fluorescence polarization to screen for inhibitor that competite the binding of FadD2...
Source: Broad Institute
Target: FATTY-ACID-CoA LIGASE FADD28 (FATTY-ACID-CoA SYNTHETASE)
External Id: 2147-01_Inhibitor_SinglePoint_HTS_Activity
Name: Bursicon-induced LGR2 mediated cAMP production in LGR-2/CRE6x-Luciferase co-transfect...
Source: Broad Institute
Target: N/A
External Id: Bursicon-induced LGR2 mediated cAMP production in LGR-2/CRE6x-Luciferase co-transfected HEK293 cells Inhibition - 7011-01_Antagonist_SinglePoint_HTS_Activity
Name: Fluorescence-based cell-based primary high throughput screening assay to identify pos...
Source: The Scripps Research Institute Molecular Screening Center
Target: muscarinic acetylcholine receptor M1 [Homo sapiens]
External Id: CHRM1_PAM_FLUO8_1536_1X%ACT PRUN
Name: Fluorescence polarization-based biochemical high throughput primary assay to identify...
Source: The Scripps Research Institute Molecular Screening Center
Target: RecName: Full=Sialate O-acetylesterase; AltName: Full=H-Lse; AltName: Full=Sialic acid-specific 9-O-acetylesterase; Flags: Precursor [Homo sapiens]
External Id: SIAE_INH_FP_1536_1X%INH PRUN
Name: Absorbance-based primary biochemical high throughput screening assay to identify acti...
Source: The Scripps Research Institute Molecular Screening Center
Target: caspase-3 preproprotein [Homo sapiens]
External Id: PROCASPASE3_ACT_EPIABS_1536_1X%ACT PRUN
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 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

7-bromo-3-hydroxy-2-naphth-o-amisidide
MFCD00004077
Naphtol AS-BI
C.I.Azoic Coupling Component 45
EINECS 248-048-3
6-bromo-2-hydroxy-N-o-hydroxyphenylnaphthalene-3-carboxamide
NAPHTHOL AS-BI

 Naphthol AS-BI | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the melting point of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide?
A: Melting point of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide is 1387 °C.
Q: What is the polar surface area (PSA) of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide?
A: Polar surface area (PSA) of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide is 58.56000.
Q: What is the SMILES notation of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide?
A: SMILES notation of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide is COc1ccccc1NC(=O)c1cc2cc(Br)ccc2cc1O.
Q: What is the LogP of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide?
A: LogP of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide is 4.64180.
Q: What is the InChIKey of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide?
A: InChIKey of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide is JIEINYQEXWLMCU-UHFFFAOYSA-N.
Q: What is the English name of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide?
A: The English name of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide is N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide.
Q: What are the storage conditions for N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide?
A: Storage conditions for N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide: 2-8°C.
Q: What English synonyms does N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide have?
A: English synonyms of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide: 7-bromo-3-hydroxy-2-naphth-o-amisidide, MFCD00004077, Naphtol AS-BI, C.I.Azoic Coupling Component 45, EINECS 248-048-3, 6-bromo-2-hydroxy-N-o-hydroxyphenylnaphthalene-3-carboxamide, NAPHTHOL AS-BI.
Q: What is the molecular weight of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide?
A: Molecular weight of N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide is 372.21300.
Q: What is the safety information for N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide?
A: Safety information for N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide: S26-S37/39.

 Naphthol AS-BIfactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
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