• 80731-20-0
• 1,2,3-BENZENETRICARBONYL TRICHLORIDE
• 1,2,3-BENZENETRICARBONYL TRICHLORIDE

• 885952-89-6
• BENZENEETHANIMIDAMIDE, N-HYDROXY-2,3,4-TRIMETHYL-
• BENZENEETHANIMIDAMIDE, N-HYDROXY-2,3,4-TRIMETHYL-

• 885956-62-7
• BENZENEETHANIMIDAMIDE, 3-FLUORO-N-HYDROXY-4-METHOXY-
• BENZENEETHANIMIDAMIDE, 3-FLUORO-N-HYDROXY-4-METHOXY-

• 43135-49-5
• 2-ブロモ-6-ヒドロキシメチル-4-メチルフェノール
• BENZENEMETHANOL,3-BROMO-2-HYDROXY-5-METHYL-

• 859299-66-4
• 4,5-ジブロモフタル酸ジメチル
• 1,2-BENZENEDICARBOXYLIC ACID,4,5-DIBROMO-,1,2-DIMETHYL ESTER

• 128104-38-1
• BENZENEETHANIMIDAMIDE,4-BROMO-2-FLUORO-N-HYDROXY
• BENZENEETHANIMIDAMIDE,4-BROMO-2-FLUORO-N-HYDROXY

• 1003856-43-6
• 1-ベンゼンスルホニル-3,4-ジブロモ-1H-ピロール
• 1-BENZENESULFONYL-3,4-DIBROMO-1H-PYRROLE

• 875235-16-8
• 1,3-BENZENEDIOL, 4-BROMO-6-NITRO-
• 1,3-BENZENEDIOL, 4-BROMO-6-NITRO-

• 105172-74-5
• BENZENE, 5-BROMO-2-CHLORO-1-NITRO-3-(TRIFLUOROMETHYL)-
• BENZENE, 5-BROMO-2-CHLORO-1-NITRO-3-(TRIFLUOROMETHYL)-

• 176860-56-3
• BENZENEETHANIMIDAMIDE, N-HYDROXY-4-(TRIFLUOROMETHYL)-
• BENZENEETHANIMIDAMIDE, N-HYDROXY-4-(TRIFLUOROMETHYL)-

• 190011-72-4
• BENZENECARBOXIMIDAMIDE,2-AMINO-6-CHLORO-,HYDROCHLORIDE (1:2)
• BENZENECARBOXIMIDAMIDE,2-AMINO-6-CHLORO-,HYDROCHLORIDE (1:2)

• 16239-26-2
• BENZENECARBOXIMIDAMIDE,N-(3-NITROPHENYL)-
• BENZENECARBOXIMIDAMIDE,N-(3-NITROPHENYL)-

• 926217-12-1
• BENZENEETHANIMIDAMIDE, N-HYDROXY-3-METHOXY-4-METHYL-
• BENZENEETHANIMIDAMIDE, N-HYDROXY-3-METHOXY-4-METHYL-

• 84299-75-2
• BENZENEPENTANOIC ACID,A-BROMO-
• BENZENEPENTANOIC ACID,A-BROMO-

• 69951-03-7
• BENZENAMINE, 2,3-DICHLORO-4-NITRO-
• BENZENAMINE, 2,3-DICHLORO-4-NITRO-

• 885963-71-3
• BENZENECARBOXIMIDAMIDE,2-CHLORO-4-FLUORO-N-HYDROXY-
• BENZENECARBOXIMIDAMIDE,2-CHLORO-4-FLUORO-N-HYDROXY-

• 52379-47-2
• BENZENECARBOXIMIDAMIDE,4-NITRO-N-PHENYL-
• BENZENECARBOXIMIDAMIDE,4-NITRO-N-PHENYL-

• 141293-70-1
• 1,3-BENZENEDICARBONYL DICHLORIDE,5-AMINO-,HYDROCHLORIDE
• 1,3-BENZENEDICARBONYL DICHLORIDE,5-AMINO-,HYDROCHLORIDE

• 380241-52-1
• BENZENECARBOXIMIDAMIDE,4-AMINO-2-CHLORO-
• BENZENECARBOXIMIDAMIDE,4-AMINO-2-CHLORO-

• 1016493-39-2
• 2-(3-ブロモ-フェニル)-N-ヒドロキシ-アセトアミジン
• BENZENEETHANIMIDAMIDE,3-BROMO-N-HYDROXY-

• 24564-71-4
• 1,2-BENZENEDICARBONYL DICHLORIDE,3-NITRO-
• 1,2-BENZENEDICARBONYL DICHLORIDE,3-NITRO-

• 103317-56-2
• BENZENAMINE, 4-[(6-CHLORO-3-PYRIDAZINYL)OXY]-3-(TRIFLUOROMETHYL)-
• BENZENAMINE, 4-[(6-CHLORO-3-PYRIDAZINYL)OXY]-3-(TRIFLUOROMETHYL)-

• 58138-38-8
• 1,2-BENZENEDICARBOXYLIC ACID,4-CHLORO-,1,2-DIMETHYL ESTER
• 1,2-BENZENEDICARBOXYLIC ACID,4-CHLORO-,1,2-DIMETHYL ESTER

• 1070892-67-9
• BENZENAMINE,2-CHLORO3-FLUORO-N-METHYL-
• BENZENAMINE,2-CHLORO3-FLUORO-N-METHYL-

• 908349-52-0
• BENZENAMINE,2-BROMO-3-CHLORO-N-METHYL-
• BENZENAMINE,2-BROMO-3-CHLORO-N-METHYL-

• 280110-80-7
• BENZENEETHANIMIDAMIDE,3,5-DIFLUORO-N-HYDROXY-
• BENZENEETHANIMIDAMIDE,3,5-DIFLUORO-N-HYDROXY-

• 943833-05-4
• BENZENAMINE,3-BROMO-6-CHLORO-2-FLUORO-N-METHYL-
• BENZENAMINE,3-BROMO-6-CHLORO-2-FLUORO-N-METHYL-

• 133391-72-7
• BENZENE, 1,2-DICHLORO-3-NITRO-4-(TRIFLUOROMETHYL)-
• BENZENE, 1,2-DICHLORO-3-NITRO-4-(TRIFLUOROMETHYL)-

• 333748-85-9
• BENZENEETHANIMIDAMIDE,2,3,6-TRICHLORO-N-HYDROXY-
• BENZENEETHANIMIDAMIDE,2,3,6-TRICHLORO-N-HYDROXY-

• 903094-85-9
• BENZENEETHANIMIDAMIDE, N-HYDROXY-3,5-DIMETHOXY
• BENZENEETHANIMIDAMIDE, N-HYDROXY-3,5-DIMETHOXY

• 13815-89-9
• 1,4-BENZENEDICARBONYL DICHLORIDE,2-BROMO-
• 1,4-BENZENEDICARBONYL DICHLORIDE,2-BROMO-

• 89980-71-2
• 2-(2-ブロモフェニル)-N'-ヒドロキシエタンイミドアミド
• BENZENEETHANIMIDAMIDE,2-BROMO-N-HYDROXY-

• 64633-88-1
• BENZENECARBOXIMIDAMIDE,2-NITRO-,HYDROCHLORIDE
• BENZENECARBOXIMIDAMIDE,2-NITRO-,HYDROCHLORIDE

• 777-64-0
• BENZENEETHANIMIDAMIDE, 3-BROMO-N-HYDROXY-4-METHOXY
• BENZENEETHANIMIDAMIDE, 3-BROMO-N-HYDROXY-4-METHOXY

• 175532-13-5
• BENZENEETHANIMIDAMIDE, 3-CHLORO-N-HYDROXY-
• BENZENEETHANIMIDAMIDE, 3-CHLORO-N-HYDROXY-

• 782496-81-5
• BENZENEPROPANOL, GAMMA-AMINO-4-NITRO-
• BENZENEPROPANOL, GAMMA-AMINO-4-NITRO-

• 70749-97-2
• 1,4-Benzenedicarboxylic acid, dimethyl ester, manuf. of, by-products from, polymers with diethylene glycol
• 1,4-Benzenedicarboxylic acid, dimethyl ester, manuf. of, by-products from, polymers with diethylene glycol

• 25068-12-6
• Benzene, ethenyl-, polymer with ethene
• Benzene, ethenyl-, polymer with ethene

• 698394-59-1
• Benzeneacetic acid, 4-ethyl-alpha,alpha-dimethyl-, methyl ester (9CI)
• Benzeneacetic acid, 4-ethyl-alpha,alpha-dimethyl-, methyl ester (9CI)

• 709649-66-1
• Benzenemethanamine, 2,3-diethoxy-N-methyl- (9CI)
• Benzenemethanamine, 2,3-diethoxy-N-methyl- (9CI)

• 70191-76-3
• Benzenesulfonic acid, oxybishexadecyl-, disodium salt
• Benzenesulfonic acid, oxybishexadecyl-, disodium salt

• 67800-94-6
• Benzenediamine, ar-methyl-, polymer with methyloxirane and oxirane
• Benzenediamine, ar-methyl-, polymer with methyloxirane and oxirane

• 105360-85-8
• Benzenemethanol, alpha-methyl-4-nitroso- (9CI)
• Benzenemethanol, alpha-methyl-4-nitroso- (9CI)

• 71949-32-1
• Benzenesulfonic acid, 4-amino-, diazotized, coupled with Dyer's mulberry extract
• Benzenesulfonic acid, 4-amino-, diazotized, coupled with Dyer's mulberry extract

• 95193-74-1
• Benzenesulfonic acid, 2-[(4-aminophenyl)amino]-5-nitro-, coupled with diazotized 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid, sodium salts
• Benzenesulfonic acid, 2-[(4-aminophenyl)amino]-5-nitro-, coupled with diazotized 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid, sodium salts

• BENZENEBUTYLSULFONAMID
• BENZENEBUTYLSULFONAMID

• (BENZENESULPHONYL)ACETAMIDE OXIM
• (BENZENESULPHONYL)ACETAMIDE OXIM

• 68081-77-6
• Benzene, polypropene derivs.
• Benzene, polypropene derivs.

• 940-13-6
• Benzene, 1-(bromoethynyl)-4-nitro-
• Benzene, 1-(bromoethynyl)-4-nitro-

• 143103-67-7
• Benzeneacetonitrile, 3-fluoro-alpha-hydroxy- (9CI)
• Benzeneacetonitrile, 3-fluoro-alpha-hydroxy- (9CI)

• 113114-06-0
• Benzene, diethenyl-, polymer with ethenylbenzene and ethenylethylbenzene, aminomethylated, chloromethane-quaternized, hydroxide
• Benzene, diethenyl-, polymer with ethenylbenzene and ethenylethylbenzene, aminomethylated, chloromethane-quaternized, hydroxide

• 625435-02-1
• Benzenemethanamine, N-cyclopropyl-2-fluoro- (9CI)
• Benzenemethanamine, N-cyclopropyl-2-fluoro- (9CI)

• 808114-08-1
• 2-メトキシ-4-メチル-N-フェニルアニリン
• Benzenamine, 2-methoxy-4-methyl-N-phenyl- (9CI)

• 454251-32-2
• Benzene, [(1-methyl-2-cyclopropen-1-yl)methoxy]- (9CI)
• Benzene, [(1-methyl-2-cyclopropen-1-yl)methoxy]- (9CI)

• BENZENESULPHONICACIDTETRAPROPYLENE-
• BENZENESULPHONICACIDTETRAPROPYLENE-

• 55231-08-8
• 1,4-Benzenedicarboxylic acid, 1,4-dimethyl ester, polymer with 1,4-butanediol and hexanedioic acid
• 1,4-Benzenedicarboxylic acid, 1,4-dimethyl ester, polymer with 1,4-butanediol and hexanedioic acid

• 35472-85-6
• アゾイックDC4
• Benzenediazonium, 2-methyl-4-(2-methylphenyl)azo-

• 26141-03-7
• 1,3-Benzenedicarboxylic acid, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 2,2-dimethyl-1,3-propanediol and hexanedioic acid
• 1,3-Benzenedicarboxylic acid, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 2,2-dimethyl-1,3-propanediol and hexanedioic acid

• 153568-80-0
• Benzenemethanaminium, N,N-dimethyl-N-2-(1-oxo-2-propenyl)oxyethyl-, chloride, polymer with N,N-dimethyl-N-2-propenyl-2-propen-1-aminium chloride
• Benzenemethanaminium, N,N-dimethyl-N-2-(1-oxo-2-propenyl)oxyethyl-, chloride, polymer with N,N-dimethyl-N-2-propenyl-2-propen-1-aminium chloride

• 27102-65-4
• 1,2-Benzenedicarboxylic acid, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol
• 1,2-Benzenedicarboxylic acid, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol

• 10058-43-2
• α,α-ジメチルベンゼンエタノールホルマート
• Benzeneethanol, .alpha.,.alpha.-dimethyl-, formate

• 188745-07-5
• Benzenamine, 3-bromo-N,N-di-2-propenyl-
• Benzenamine, 3-bromo-N,N-di-2-propenyl-

• 10029-30-8
• 1,4-Benzenediamine, N-(1-methylpropyl)-
• 1,4-Benzenediamine, N-(1-methylpropyl)-

• 165375-25-7
• Benzenesulfonamide, N-3,4-bis(benzoyloxy)-2-(1,1-dimethylethyl)dimethylsilyloxymethyl-5-hydroxycyclopentyl-4-methyl-, 1S-(1.alpha.,2.beta.,3.alpha.,4.beta.,5.alpha.)-
• Benzenesulfonamide, N-3,4-bis(benzoyloxy)-2-(1,1-dimethylethyl)dimethylsilyloxymethyl-5-hydroxycyclopentyl-4-methyl-, 1S-(1.alpha.,2.beta.,3.alpha.,4.beta.,5.alpha.)-

• 71486-79-8
• Benzenesulfonic acid, mono-C15-30-branched alkyl and di-C11-13-branched and linear alkyl derivs., calcium salts, overbased
• Benzenesulfonic acid, mono-C15-30-branched alkyl and di-C11-13-branched and linear alkyl derivs., calcium salts, overbased

• 25067-00-9
• Benzenesulfonamide, 4-methyl-, polymer with formaldehyde and 1,3,5-triazine-2,4,6-triamine
• Benzenesulfonamide, 4-methyl-, polymer with formaldehyde and 1,3,5-triazine-2,4,6-triamine

• 150180-89-5
• 1,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 3-hydroxy-2,2-dimethylpropyl 3-hydroxy-2,2-dimethylpropanoate
• 1,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 3-hydroxy-2,2-dimethylpropyl 3-hydroxy-2,2-dimethylpropanoate

• 80586-96-5
• Benzenepropanal, .beta.-ethenyl-.alpha.,.beta.-dimethyl-
• Benzenepropanal, .beta.-ethenyl-.alpha.,.beta.-dimethyl-

• BENZENE,META-BROMONITRO-
• BENZENE,META-BROMONITRO-

• 73507-48-9
• 2,2'-(1,2-エタンジイル)ビス[5-[[4-(3-ヒドロキシプロポキシ)フェニル]アゾ]ベンゼンスルホン酸ナトリウム]
• Benzenesulfonic acid, 2,2-(1,2-ethenediyl)bis5-4-(3-hydroxypropoxy)phenylazo-, disodium salt

• 111381-90-9
• 1,2-Benzenedicarboxylic acid, heptyl undecyl ester, branched and linear
• 1,2-Benzenedicarboxylic acid, heptyl undecyl ester, branched and linear

• 50973-35-8
• Benzenesulfonic acid, hydroxy-, polymer with formaldehyde
• Benzenesulfonic acid, hydroxy-, polymer with formaldehyde

• 115733-09-0
• Benzenesulfonic acid, C14-24-branched and linear alkyl derivs., calcium salts
• Benzenesulfonic acid, C14-24-branched and linear alkyl derivs., calcium salts

• 766-91-6
• ジアゾフェニルメタン
• Benzene, (diazomethyl)-

• 137237-04-8
• 1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol and 2-(hydroxymethyl)-2-methyl-1,3-propanediol
• 1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol and 2-(hydroxymethyl)-2-methyl-1,3-propanediol

• 39310-05-9
• Benzene, 1,1-methylenebisisocyanato-, homopolymer
• Benzene, 1,1-methylenebisisocyanato-, homopolymer

• 37871-48-0
• 1,4-Benzenedicarboxylic acid, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid and 2,2-dimethyl-1,3-propanediol
• 1,4-Benzenedicarboxylic acid, polymer with 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid and 2,2-dimethyl-1,3-propanediol

• 26375-06-4
• 1,3-Benzenedicarboxylic acid, polymer with hexahydro-2H-azepin-2-one and 1,6-hexanediamine
• 1,3-Benzenedicarboxylic acid, polymer with hexahydro-2H-azepin-2-one and 1,6-hexanediamine

• 33520-88-6
• Benzene, 1-ethenyl-4-methyl-, polymer with 1,3-butadiene
• Benzene, 1-ethenyl-4-methyl-, polymer with 1,3-butadiene

• 862074-39-3
• 1,3-Benzenedicarboxylic acid, polymer with 1,3-bis(isocyanatomethyl)cyclohexane, 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid and 1,6-hexanediol
• 1,3-Benzenedicarboxylic acid, polymer with 1,3-bis(isocyanatomethyl)cyclohexane, 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid and 1,6-hexanediol

• BENZENE,CHLORONITRO-(MIXEDISOMERS)
• BENZENE,CHLORONITRO-(MIXEDISOMERS)

• BENZENESULPHONICACID,LAURYL(DODECYL)ESTER
• BENZENESULPHONICACID,LAURYL(DODECYL)ESTER

• BENZENETHANOL,ALPHA,ALPHA-DIMETHYL-,PROPANOATE
• BENZENETHANOL,ALPHA,ALPHA-DIMETHYL-,PROPANOATE

• BENZENE,1,4-DI(METHYLETHYL)-
• BENZENE,1,4-DI(METHYLETHYL)-

• 38369-95-8
• 2-(2,4-ジヒドロキシフェニル)-4,6-ジフェニル-1,3,5-トリアジン
• 1,3-Benzenediol, 4-(4,6-diphenyl-1,3,5-triazin-2-yl)-

• 53808-42-7
• 1,4-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol and 2-ethyl-2-(hydroxymethyl)-1,3-propanediol
• 1,4-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol and 2-ethyl-2-(hydroxymethyl)-1,3-propanediol

• 163702-01-0
• KIP 150
• KIP 150

• 115733-10-3
• Benzenesulfonic acid, C14-24-branched and linear alkyl derivs., calcium salts, overbased
• Benzenesulfonic acid, C14-24-branched and linear alkyl derivs., calcium salts, overbased

• 68379-09-9
• Benzenesulfonamide, ar-methyl-, polymer with formaldehyde and tetrahydroimidazo4,5-dimidazole-2,5(1H,3H)-dione
• Benzenesulfonamide, ar-methyl-, polymer with formaldehyde and tetrahydroimidazo4,5-dimidazole-2,5(1H,3H)-dione

• 156559-10-3
• 1,3-Benzenedicarboxylic acid, polymer with hexanedioic acid, 1,6-hexanediol, 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, compd. with 2-(dimethylamino)ethanol
• 1,3-Benzenedicarboxylic acid, polymer with hexanedioic acid, 1,6-hexanediol, 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, compd. with 2-(dimethylamino)ethanol

• 87726-51-0
• 1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid and 2,2-dimethyl-1,3-propanediol
• 1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid and 2,2-dimethyl-1,3-propanediol

• 9041-04-7
• Benzenesulfonic acid, hydroxy-, polymer with formaldehyde and urea
• Benzenesulfonic acid, hydroxy-, polymer with formaldehyde and urea

• 54802-81-2
• 1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol and 2-ethyl-2-(hydroxymethyl)-1,3-propanediol
• 1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol and 2-ethyl-2-(hydroxymethyl)-1,3-propanediol

• 123447-94-9
• 1,4-Benzenedicarboxylic acid, polymer with 1,6-hexanediamine and 2-methyl-1,5-pentanediamine
• 1,4-Benzenedicarboxylic acid, polymer with 1,6-hexanediamine and 2-methyl-1,5-pentanediamine

• 201932-29-8
• 1,3-Benzenedicarboxylic acid, 5-4-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo-1-naphthalenylazo-, ammonium salt
• 1,3-Benzenedicarboxylic acid, 5-4-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo-1-naphthalenylazo-, ammonium salt

• BENZENE,1-CHLORO-3-(EPOXYETHYL)-
• BENZENE,1-CHLORO-3-(EPOXYETHYL)-

• 116973-58-1
• 1,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol and 1,3-isobenzofurandione
• 1,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 1,2-ethanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol and 1,3-isobenzofurandione

• 52870-46-9
• Benzenamine, N-4-(1,3-dimethylbutyl)imino-2,5-cyclohexadien-1-ylidene-
• Benzenamine, N-4-(1,3-dimethylbutyl)imino-2,5-cyclohexadien-1-ylidene-

• 55012-14-1
• 1,3-Benzenedicarboxylic acid, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid and 2,2,4-trimethyl-1,3-pentanediol
• 1,3-Benzenedicarboxylic acid, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid and 2,2,4-trimethyl-1,3-pentanediol

• 67801-03-0
• ビス[5-クロロ-4-エチル-2-[(2-ヒドロキシ-1-ナフタレニル)アゾ]ベンゼンスルホン酸]カルシウム
• Benzenesulfonic acid, 5-chloro-4-ethyl-2-(2-hydroxy-1-naphthalenyl)azo-, calcium salt (2:1)