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122775-35-3

Basic Information
CAS No.: 122775-35-3
Name: 3,4-Dimethoxyphenylboronic acid
Molecular Structure:
Molecular Structure of 122775-35-3 (3,4-Dimethoxyphenylboronic acid)
Formula: C8H11BO4
Molecular Weight: 181.98
Synonyms: Boronicacid, (3,4-dimethoxyphenyl)- (9CI);
EINECS: -0
Density: 1.19 g/cm3
Melting Point: 245-250 °C(lit.)
Boiling Point: 336.7 °C at 760 mmHg
Flash Point: 157.4 °C
Solubility: 25 g/L in water
Appearance: white to light beige powder and granules
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26-36/37/39
Transport Information:
PSA: 58.92000
LogP: -0.61640
Synthetic route
365564-10-9

2-(3,4-dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

122775-35-3

3,4-Dimethoxyphenylboronic acid

Conditions
ConditionsYield
With hydrogenchloride; polystyrene boronic acid In acetonitrile at 20℃; for 18h;95%
121-43-7

Trimethyl borate

2859-78-1

4-Bromoveratrole

122775-35-3

3,4-Dimethoxyphenylboronic acid

Conditions
ConditionsYield
With Mg In tetrahydrofuran Mg (reflux), THF, B(OCH)3, bromobenzene-compound (-10°C) or n-butyllithium, B(OCH3)3, -78°C, THF;78%
Stage #1: 4-Bromoveratrole With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere;
Stage #2: Trimethyl borate In tetrahydrofuran; hexane at -78 - 20℃; for 17h; Inert atmosphere;
Stage #3: With hydrogenchloride In tetrahydrofuran; hexane; water at 20℃; for 2h; pH=1; Inert atmosphere;
64%
Stage #1: 4-Bromoveratrole With tert.-butyl lithium In tetrahydrofuran at -78℃; for 1h;
Stage #2: Trimethyl borate In tetrahydrofuran at -78℃; for 1h;
Stage #1: 4-Bromoveratrole With n-butyllithium In tetrahydrofuran at -78℃; for 0.5h; Inert atmosphere;
Stage #2: Trimethyl borate In tetrahydrofuran at -78 - 25℃; Inert atmosphere;
2859-78-1

4-Bromoveratrole

122775-35-3

3,4-Dimethoxyphenylboronic acid

Conditions
ConditionsYield
Stage #1: 4-Bromoveratrole With n-butyllithium In tetrahydrofuran at -78℃; Inert atmosphere;
Stage #2: With Trimethyl borate In tetrahydrofuran at -78 - 20℃; Inert atmosphere;
78%
Stage #1: 4-Bromoveratrole With tert.-butyl lithium In tetrahydrofuran at -78℃;
Stage #2: With Trimethyl borate In tetrahydrofuran at -78 - 20℃; Further stages.;
39%
Multi-step reaction with 2 steps
1.1: n-butyllithium / tetrahydrofuran / 2 h / -78 °C / Inert atmosphere
1.2: -78 - 20 °C / Inert atmosphere
2.1: hydrogenchloride / tetrahydrofuran; water / -20 - 20 °C / Inert atmosphere
View Scheme
5419-55-6

Triisopropyl borate

2859-78-1

4-Bromoveratrole

122775-35-3

3,4-Dimethoxyphenylboronic acid

Conditions
ConditionsYield
Stage #1: 4-Bromoveratrole With n-butyllithium In tetrahydrofuran at -78℃; for 1h; Inert atmosphere;
Stage #2: Triisopropyl borate In tetrahydrofuran at -78 - 20℃; Inert atmosphere;
74%
6315-89-5

3,4-dimethoxyaniline

122775-35-3

3,4-Dimethoxyphenylboronic acid

Conditions
ConditionsYield
Stage #1: 3,4-dimethoxyaniline With hydrogenchloride; sodium nitrite In methanol; water at 0 - 5℃; for 0.5h;
Stage #2: With tetrahydroxydiboron In methanol; water at 20℃; for 1h;
65%

C10H15BO4

122775-35-3

3,4-Dimethoxyphenylboronic acid

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran at 22℃;
With hydrogenchloride In tetrahydrofuran; water at -20 - 20℃; Inert atmosphere;17.2 g
91-16-7

1,2-dimethoxybenzene

122775-35-3

3,4-Dimethoxyphenylboronic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: N-Bromosuccinimide; silica gel / dichloromethane / 24 h / 20 °C
2.1: n-butyllithium / tetrahydrofuran / 2 h / -78 °C / Inert atmosphere
2.2: -78 - 20 °C / Inert atmosphere
3.1: hydrogenchloride / tetrahydrofuran; water / -20 - 20 °C / Inert atmosphere
View Scheme
122775-35-3

3,4-Dimethoxyphenylboronic acid

570402-53-8

1-[2-(4-methoxy-phenyl)-ethyl]-3,4-bis-trifluoromethanesulfonyloxy-1H-pyrrole-2,5-dicarboxylic acid dimethyl ester

3,4-bis-(3,4-dimethoxy-phenyl)-1-[2-(4-methoxy-phenyl)-ethyl]-1H-pyrrole-2,5-dicarboxylic acid dimethyl ester

Conditions
ConditionsYield
With sodium carbonate; tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran for 20h; Suzuki cross-coupling; Heating;100%

N-benzenesulfonyl-3-bromo-4-(4-methoxyphenyl)pyrrole

122775-35-3

3,4-Dimethoxyphenylboronic acid

N-benzenesulfonyl-3-(3,4-dimethoxyphenyl)-4-(4-methoxyphenyl)pyrrole

Conditions
ConditionsYield
With sodium carbonate; tetrakis(triphenylphosphine) palladium(0) In 1,2-dimethoxyethane at 85℃; for 24h; Suzuki-Miyaura reaction;100%
3141-27-3

2,5-dibromothiophen

122775-35-3

3,4-Dimethoxyphenylboronic acid

1394840-81-3

2,5-bis(3',4'-dimethoxyphenyl)thiophene

Conditions
ConditionsYield
With sodium carbonate; tetrakis(triphenylphosphine) palladium(0) In 1,4-dioxane at 90℃; Inert atmosphere;100%
With sodium carbonate; Pd(PPh3)4 In 1,4-dioxane
260783-80-0

N,N,N-­trimethyl-­1-­phenylmethanaminium trifluoromethanesulfonate

122775-35-3

3,4-Dimethoxyphenylboronic acid

78238-97-8

(3,4-dimethoxyphenyl)phenylmethane

Conditions
ConditionsYield
With bis(1,5-cyclooctadiene)nickel (0); potassium phosphate; cyclohexyldiphenylphosphine In 1,4-dioxane at 40℃; for 24h; Reagent/catalyst; Inert atmosphere; Glovebox;100%

(S)-(+)-(1,2,3,4-tetrahydronaphth-1-ylamino)acetaldehyde dimethyl acetal

122775-35-3

3,4-Dimethoxyphenylboronic acid

298-12-4

Glyoxilic acid

N-2,2-dimethoxyethyl-N-[1-(1,2,3,4-tetrahydro)naphth-1-yl]-2-(3,4-dimethoxyphenyl)glycine

Conditions
ConditionsYield
Stage #1: 3,4-Dimethoxyphenylboronic acid; Glyoxilic acid In dichloromethane at 20℃; Petasis Reaction;
Stage #2: (S)-(+)-(1,2,3,4-tetrahydronaphth-1-ylamino)acetaldehyde dimethyl acetal In dichloromethane at 20℃; for 72h; Petasis Reaction; diastereoselective reaction;
100%

(R)-(-)-(1-indanamino)acetaldehyde dimethyl acetal

122775-35-3

3,4-Dimethoxyphenylboronic acid

298-12-4

Glyoxilic acid

N-2,2-dimethoxyethyl-N-[1-(1,2,3,4-tetrahydro)naphth-1-yl]-2-(3,4-dimethoxyphenyl)glycine

Conditions
ConditionsYield
Stage #1: 3,4-Dimethoxyphenylboronic acid; Glyoxilic acid In dichloromethane at 20℃; Petasis Reaction;
Stage #2: (R)-(-)-(1-indanamino)acetaldehyde dimethyl acetal In dichloromethane at 20℃; for 72h; Petasis Reaction; diastereoselective reaction;
100%
937048-51-6

4-bromo-5-cyano-2-carbethoxypyrrole

122775-35-3

3,4-Dimethoxyphenylboronic acid

5-cyano-4-(3,4-dimethoxyphenyl)-1H-pyrrole-2-carboxylic acid ethyl ester

Conditions
ConditionsYield
With 1,4-diaza-bicyclo[2.2.2]octane; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 In 1,4-dioxane; water at 110℃; for 2h; Suzuki-Miyaura Coupling; Microwave irradiation;100%
4408-64-4

N-methyliminodiacetic acid

122775-35-3

3,4-Dimethoxyphenylboronic acid

C13H16BNO6

Conditions
ConditionsYield
In dimethyl sulfoxide; toluene for 16h; Reflux; Molecular sieve; Dean-Stark;100%
In N,N-dimethyl-formamide at 120℃; Molecular sieve; Inert atmosphere;
72115-09-4

5-amino-2-bromobenzonitrile

122775-35-3

3,4-Dimethoxyphenylboronic acid

4-amino-3’,4’-dimethoxybiphenyl-2-carbonitrile

Conditions
ConditionsYield
With bis-triphenylphosphine-palladium(II) chloride; potassium carbonate In 1,2-dimethoxyethane; water at 100℃; for 1h; Inert atmosphere;100%
Stage #1: 5-amino-2-bromobenzonitrile; 3,4-Dimethoxyphenylboronic acid With potassium carbonate In 1,2-dimethoxyethane; water for 0.0833333h; Suzuki Coupling; Inert atmosphere;
Stage #2: With bis-triphenylphosphine-palladium(II) chloride In 1,2-dimethoxyethane; water at 100℃; for 1h; Suzuki Coupling;
100%

6,7‐dimethoxy‐9‐methyl‐1‐oxo‐1,3‐dihydronaphtho[2,3‐c]furan‐4‐yl trifluoromethanesulfonate

122775-35-3

3,4-Dimethoxyphenylboronic acid

4‐(3,4‐dimethoxyphenyl)‐6,7‐dimethoxy‐9‐methylnaphtho[2,3‐c]-furan‐1(3H)‐one

Conditions
ConditionsYield
With potassium phosphate; tetrakis(triphenylphosphine) palladium(0) In N,N-dimethyl-formamide at 80℃; for 12h; Suzuki Coupling; Inert atmosphere;100%

6,7,9‐trimethoxy‐1‐oxo‐1,3‐dihydronaphtho[2,3‐c]furan‐4‐yl trifluoromethanesulfonate

122775-35-3

3,4-Dimethoxyphenylboronic acid

4‐(3,4‐dimethoxyphenyl)‐6,7,9‐trimethoxynaphtho[2,3‐c]furan‐1(3H)‐one

Conditions
ConditionsYield
With potassium phosphate; tetrakis(triphenylphosphine) palladium(0) In N,N-dimethyl-formamide at 80℃; for 12h; Suzuki Coupling; Inert atmosphere;100%
122775-35-3

3,4-Dimethoxyphenylboronic acid

548775-83-3

7-iodo-2-trimethylsilanyl-imdole-1-carboxylic acid diethylamide

7-(3,4-dimethoxy-phenyl)-2-trimethylsilanyl-indole-1-carboxylic acid diethylamide

Conditions
ConditionsYield
With potassium phosphate; tetrakis(triphenylphosphine) palladium(0) In N,N-dimethyl-formamide at 80℃; for 15h; Suzuki-Miyaura cross coupling;99%
122775-35-3

3,4-Dimethoxyphenylboronic acid

586-78-7

para-nitrophenyl bromide

17190-03-3

4-nitro-3',4'-dimethoxy-2,2'-biphenyl

Conditions
ConditionsYield
With 18-crown-6 ether; 10% Pd/C; potassium carbonate In methanol; water at 45℃; for 0.5h; Suzuki-Miyaura Coupling;99%
With potassium carbonate; amino-imidate palladium(II) complexes In water; N,N-dimethyl-formamide at 100℃; for 6h; Suzuki cross-coupling reaction;87%
76-09-5

2,3-dimethyl-2,3-butane diol

122775-35-3

3,4-Dimethoxyphenylboronic acid

365564-10-9

2-(3,4-dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Conditions
ConditionsYield
With toluene-4-sulfonic acid In benzene for 16h; Heating;99%
591-50-4

iodobenzene

122775-35-3

3,4-Dimethoxyphenylboronic acid

17423-55-1

3,4-dimethoxy-1,1'-biphenyl

Conditions
ConditionsYield
With bis(1,1'-ethylene-3,3'-divinylimidazole-2,2'-diylidene)nickel(II) dibromide dihydrate; potassium carbonate In water; N,N-dimethyl-formamide at 100℃; for 8h; Suzuki-Miyaura Coupling; Inert atmosphere; Schlenk technique;99%
With potassium carbonate In water at 80℃; under 760.051 Torr; for 14h; Suzuki Coupling; Green chemistry;98%
With potassium carbonate In dimethyl sulfoxide at 80℃; for 6h; Suzuki-Miyaura Coupling;98%
122775-35-3

3,4-Dimethoxyphenylboronic acid

298-12-4

Glyoxilic acid

171049-41-5

tert-butyl 7-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate

1036389-01-1

C24H30N2O6

Conditions
ConditionsYield
In N,N-dimethyl-formamide; acetonitrile at 100℃; for 0.166667h; Microwave irradiation;99%
1036388-96-1

7-aminophthalazin-1(2H)-one

122775-35-3

3,4-Dimethoxyphenylboronic acid

298-12-4

Glyoxilic acid

1036388-98-3

C18H17N3O5

Conditions
ConditionsYield
In N,N-dimethyl-formamide; acetonitrile at 100℃; for 0.166667h; Microwave irradiation;99%
In water; N,N-dimethyl-formamide; acetonitrile Microwave irradiation; Heating;
100-39-0

benzyl bromide

122775-35-3

3,4-Dimethoxyphenylboronic acid

78238-97-8

(3,4-dimethoxyphenyl)phenylmethane

Conditions
ConditionsYield
With [(1,7-bis{(pyridin-2′-yl)hydroxymethyl}-1,7-dicarba-closo-dodecaborane(-1H))PdCl]*DMF; potassium carbonate In water at 110℃; for 10h; Reagent/catalyst; Suzuki Coupling;99%
With [2-(1H-pyrazolyl-κN2)-6-((diphenylphosphino)amine-κP)phenyl-κCl]palladium(II) chloride; sodium carbonate In water at 100℃; for 3h; Suzuki coupling;81%
With caesium carbonate In water at 110℃; for 18h; Suzuki-Miyaura Coupling;41%
With potassium phosphate; Br(1-)*C21H21BrN5O6(1+) In water at 100℃; for 3h; Suzuki-Miyaura coupling;65 %Spectr.
1191422-03-3

C22H24Br2O2

122775-35-3

3,4-Dimethoxyphenylboronic acid

1191422-04-4

C38H42O6

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In 1,2-dimethoxyethane for 48h; Suzuki coupling; Inert atmosphere; Reflux; Darkness;99%
1191421-83-6

4,4‘-(2,5-dibromo-1,4-phenylene)bis(2-methylbut-3-yn-2-ol)

122775-35-3

3,4-Dimethoxyphenylboronic acid

1191421-88-1

C32H34O6

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In 1,2-dimethoxyethane; water Suzuki coupling; Inert atmosphere; Reflux; Darkness;99%
638191-28-3

trifluoromethanesulfonic acid 6-methoxy-2-oxo-2H-chromen-4-yl ester

122775-35-3

3,4-Dimethoxyphenylboronic acid

4-(3,4-dimethoxyphenyl)-6-methoxy-2H-chromen-2-one

Conditions
ConditionsYield
With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0); sodium carbonate In methanol; toluene Suzuki coupling; Reflux;99%
With bis-triphenylphosphine-palladium(II) chloride; potassium carbonate In 1,4-dioxane; water for 14h; Suzuki Coupling; Inert atmosphere; Reflux;61%
1144503-16-1

dimethyl N-benzyl-3,4-bis(trifluoromethanesulfonyloxy)pyrrole-2,5-dicarboxylate

122775-35-3

3,4-Dimethoxyphenylboronic acid

1144503-23-0

dimethyl N-benzyl-3,4-bis(3,4-dimethoxyphenyl)pyrrole-2,5-dicarboxylate

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In tetrahydrofuran; water at 20℃; Suzuki-Miyaura coupling; Reflux; Inert atmosphere;99%
With palladium diacetate; sodium carbonate; triphenylphosphine In 1,4-dioxane; water at 80℃; for 18h; Inert atmosphere;
1391099-62-9

3-O-(4-bromobenzyl)-4,5-di-O-benzyl-6-O-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-D-myo-inositol

122775-35-3

3,4-Dimethoxyphenylboronic acid

1391099-63-0

4,5-di-O-benzyl-3-O-(4-(3,4-dimethoxyphenyl)benzyl)-6-O-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-D-myo-inositol

Conditions
ConditionsYield
With potassium phosphate; tetrabutylammomium bromide; palladium diacetate In ethanol at 20℃; for 3h; Suzuki-Miyaura coupling; Inert atmosphere;99%
1122-91-4

4-bromo-benzaldehyde

122775-35-3

3,4-Dimethoxyphenylboronic acid

640769-65-9

3',4'-dimethoxy-[1,1'-biphenyl]-4-carbaldehyde

Conditions
ConditionsYield
With 18-crown-6 ether; 10% Pd/C; potassium carbonate In methanol; water at 45℃; for 0.5h; Suzuki-Miyaura Coupling;99%
With C14H8F6O4; nickel trifluoroacetate; potassium carbonate; triphenylphosphine; 1-butyl-3-methylimidazolium trifluoromethanesulfonimide In water at 80℃; for 18h; Suzuki-Miyaura Coupling; Green chemistry;90.2%
104-92-7

1-bromo-4-methoxy-benzene

122775-35-3

3,4-Dimethoxyphenylboronic acid

3,4-dimethoxy-4′-methoxybiphenyl

Conditions
ConditionsYield
With bis(1,1'-ethylene-3,3'-divinylimidazole-2,2'-diylidene)nickel(II) dibromide dihydrate; potassium carbonate In water; N,N-dimethyl-formamide at 100℃; for 8h; Suzuki-Miyaura Coupling; Inert atmosphere; Schlenk technique;99%
With 18-crown-6 ether; 10% Pd/C; potassium carbonate In methanol; water at 45℃; for 1h; Suzuki-Miyaura Coupling;98%
With C14H8F6O4; nickel trifluoroacetate; potassium carbonate; triphenylphosphine; 1-butyl-3-methylimidazolium trifluoromethanesulfonimide In water at 80℃; for 18h; Suzuki-Miyaura Coupling; Green chemistry;85%
122775-35-3

3,4-Dimethoxyphenylboronic acid

76203-05-9

methyl 2-isocyano-3,3-diphenyl acrylate

methyl 1-(3,4-dimethoxyphenyl)-4-phenylisoquinoline-3-carboxylate

Conditions
ConditionsYield
With oxygen; manganese(II) acetylacetonate dihydrate In toluene at 80℃; for 2h; Schlenk technique;99%
122775-35-3

3,4-Dimethoxyphenylboronic acid

75-05-8

acetonitrile

2024-83-1

veratronitrile

Conditions
ConditionsYield
With N-iodo-succinimide; 1,10-Phenanthroline; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; 1,1,1,2,2,2-hexamethyldisilane; oxygen; copper diacetate; diisopropylamine at 20 - 150℃; Schlenk technique;99%
42079-81-2

6,8-dibromo-2-phenyl-4H-chromen-4-one

122775-35-3

3,4-Dimethoxyphenylboronic acid

6,8-bis(3,4-dimethoxyphenyl)flavone

Conditions
ConditionsYield
With potassium phosphate; tetrakis(triphenylphosphine) palladium(0) In 1,4-dioxane at 100℃; for 15h; Suzuki-Miyaura Coupling; Inert atmosphere;99%

C20H11F3O4S

122775-35-3

3,4-Dimethoxyphenylboronic acid

C27H20O3

Conditions
ConditionsYield
With potassium phosphate; tetrakis(triphenylphosphine) palladium(0) In 1,4-dioxane at 100℃; for 12h; Suzuki-Miyaura Coupling; Inert atmosphere; regioselective reaction;99%

C26H23Br2NO4

122775-35-3

3,4-Dimethoxyphenylboronic acid

C42H41NO8

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0) In toluene at 80℃; Suzuki-Miyaura Coupling; Inert atmosphere;99%
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    SAGECHEM is a chemical R&D, manufacturing and distribution company in China since 2009, including pharmaceutical intermediates, agrochemical, dyestuff intermediates, organosilicone, API and etc. We also offer a full range of services in custom synthe

    SAGECHEM is a chemical R&D, manufacturing and distribution company since 2009, including pharmaceutical intermediates, agrochemical, dyestuff intermediates, organosilicone, API and

  •  SAGECHEM LIMITED

     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:+86-571-86818502

    Address:5Fl. 501Room, Tower A, New Youth Plaza, 8 Jia Shan Road, Hangzhou, China

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Chemistry

Systematic Name: (3,4-Dimethoxyphenyl)boronic acid
Synonyms of 3,4-Dimethoxyphenylboronic acid (CAS NO.122775-35-3): 3,4-Dimethoxyphenylboronic acid,97%
CAS NO: 122775-35-3
Molecular Formula: C8H11BO4
Molecular Weight: 181.98
Molecular Structure:
H bond acceptors: 4
H bond donors: 2
Freely Rotating Bonds: 5
Polar Surface Area: 36.92 Å2
Index of Refraction: 1.517
Molar Refractivity: 46.01 cm3
Molar Volume: 151.8 cm3
Surface Tension: 43 dyne/cm
Density: 1.19 g/cm3
Flash Point: 157.4 °C
Enthalpy of Vaporization: 61.21 kJ/mol
Boiling Point: 336.7 °C at 760 mmHg
Vapour Pressure: 4.31E-05 mmHg at 25°C
Melting Point: 245-250 °C(lit.)
Storage temp: Keep Cold
Water Solubility: 25 g/L
Appearance: white to light beige powder and granules
Product Categories of of 3,4-Dimethoxyphenylboronic acid (CAS NO.122775-35-3): blocks;BoronicAcids;Boronic Acid series;Substituted Boronic Acids;Boronic Acid;Alkoxy;Aryl;Organoborons;B (Classes of Boron Compounds);Boronic Acids;Boronic Acids;Boronic Acids and Derivatives
SMILES: O(c1ccc(cc1OC)B(O)O)C
InChI: InChI=1/C8H11BO4/c1-12-7-4-3-6(9(10)11)5-8(7)13-2/h3-5,10-11H,1-2H3
InChIKey: RCVDPBFUMYUKPB-UHFFFAOYAB
Std. InChI: InChI=1S/C8H11BO4/c1-12-7-4-3-6(9(10)11)5-8(7)13-2/h3-5,10-11H,1-2H3
Std. InChIKey: RCVDPBFUMYUKPB-UHFFFAOYSA-N

Safety Profile

Hazard Codes: IrritantXi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
WGK Germany: 3
Hazard Note: Irritant/Keep Cold
HazardClass: IRRITANT

Specification

General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical foam. 
Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage: Store 3,4-Dimethoxyphenylboronic acid (CAS NO.122775-35-3) in a tightly closed container. Store in a dry area. Keep refrigerated. (Store below 4°C/39°F.)