2-Hydroxy-1,2-diphenylethanone oxime (alpha-form)
alpha-Benzoin oxime
CAS: 441-38-3
Molecular Formula: C14H13NO2
2-Hydroxy-1,2-diphenylethanone oxime (alpha-form) - Names and Identifiers
| Name | alpha-Benzoin oxime |
| Synonyms | CUPRON CUPRONE alpha-benzoin Benzoin α-oxime BENZOIN A-OXIME α-Benzoin oxime BENZOIN ANTI-OXIME alpha-Benzoin oxime BENZOIN-ALPHA-OXIME BENZOIN ALPHA-MONOXIME a-Benzoin oxime, (Cupron) 2-hydroxy-1,2-diphenyl-ethanonoxime (1E)-2-hydroxy-1,2-diphenylethanone oxime (1Z)-2-hydroxy-1,2-diphenylethanone oxime (1E,2S)-2-hydroxy-1,2-diphenylethanone oxime (1Z,2R)-2-hydroxy-1,2-diphenylethanone oxime (1Z,2S)-2-hydroxy-1,2-diphenylethanone oxime 2-Hydroxy-1,2-diphenylethanone oxime (alpha-form) |
| CAS | 441-38-3 |
| EINECS | 207-127-2 |
| InChI | InChI=1/C14H13NO2/c16-14(12-9-5-2-6-10-12)13(15-17)11-7-3-1-4-8-11/h1-10,14,16-17H/b15-13-/t14-/m1/s1 |
2-Hydroxy-1,2-diphenylethanone oxime (alpha-form) - Physico-chemical Properties
| Molecular Formula | C14H13NO2 |
| Molar Mass | 227.26 |
| Density | 1.13 |
| Melting Point | 153-155°C(lit.) |
| Boling Point | 368.97°C (rough estimate) |
| Flash Point | 270.4°C |
| Water Solubility | Slightly soluble in water |
| Solubility | ethanol: 0.1g/mL, clear |
| Vapor Presure | 9.98E-08mmHg at 25°C |
| Vapor Density | 7.9 (vs air) |
| Appearance | Crystalline Powder |
| Color | White to almost white |
| Odor | Odorless |
| Merck | 14,1094 |
| BRN | 2051941 |
| pKa | 10.92±0.40(Predicted) |
| Storage Condition | Store below +30°C. |
| Stability | Stable, but may be light sensitive. Incompatible with strong oxidizing agents. |
| Sensitive | Light Sensitive |
| Refractive Index | 1.5780 (estimate) |
| MDL | MFCD00004501 |
| Physical and Chemical Properties | White crystalline powder. Melting Point 151-152 °c. Soluble in ethanol and ammonium hydroxide solution, slightly soluble in water. It turned from white to black when exposed to light. |
| Use | Used as a reagent for the determination of copper and molybdenum |
2-Hydroxy-1,2-diphenylethanone oxime (alpha-form) - Risk and Safety
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| RTECS | DI1750000 |
| FLUKA BRAND F CODES | 8 |
| TSCA | Yes |
| HS Code | 29280000 |
| Toxicity | LD orl-rat: >500 mg/kg NCNSA6 5,9,53 |
2-Hydroxy-1,2-diphenylethanone oxime (alpha-form) - Nature
Open Data Verified Data
white crystalline powder. The melting point was 151-152 °c. Soluble in ethanol and ammonium hydroxide solution, slightly soluble in water. It turned from white to black when exposed to light. The color gradually darkened after light exposure.
Last Update：2024-01-02 23:10:35
2-Hydroxy-1,2-diphenylethanone oxime (alpha-form) - Preparation Method
Open Data Verified Data
from the role of benzoin and hydroxylamine.
Last Update：2022-01-01 09:27:13
2-Hydroxy-1,2-diphenylethanone oxime (alpha-form) - Introduction
The color gradually darkens after light. Insoluble in water, easily soluble in ammonia and alkaline solution, soluble in ethanol, ether, acetone and chloroform and other organic solvents. Median lethal dose (mice, abdominal cavity) 150mg/kg. It forms water-insoluble green complexes with Cu2 in ammonia medium, and forms water-insoluble complexes with MoO, WO, VO and Pb2, such as Pd2, Pt4 and Rh3, which can be extracted with chloroform.
Last Update：2022-10-16 17:25:14
2-Hydroxy-1,2-diphenylethanone oxime (alpha-form) - Use
Open Data Verified Data
It is used for the detection and determination of copper, molybdenum and tungsten, and is also used as a chelating agent for the extraction of tantalum, vanadium, tungsten, etc. This product can form insoluble precipitation with copper, molybdenum and tungsten ions, and can be used as a precipitant for gravimetric determination or dissolved in organic solvent for extraction and separation. It can also be used for spectrophotometric determination of Pd II ) , Pt( yl) , Rh( III).
Last Update：2022-01-01 09:27:13
2-Hydroxy-1,2-diphenylethanone oxime (alpha-form) - Safety
Open Data Verified Data
median lethal dose (mice, abdominal cavity) 150mg/kg.
Last Update：2022-01-01 09:27:14
2-Hydroxy-1,2-diphenylethanone oxime (alpha-form) - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | used for the inspection and determination of copper, molybdenum and tungsten, and also used as a chelating agent for the extraction of tantalum, vanadium, tungsten, etc. used as a reagent for the determination of copper and molybdenum this product can form insoluble precipitates with copper, molybdenum and tungsten ions, and is used as a precipitant for gravimetric determination or soluble in organic solvents for extraction and separation. It can also be used for spectrophotometric determination of Pd(II), Pt(VI), Rh(III), physiological research and determination of trace metal elements |
| Production method | is obtained by the action of benzoin and hydroxylamine. |
| category | toxic substances |
| toxicity classification | highly toxic |
| acute toxicity | oral-rat LD: > 500 mg/kg; Abdominal cavity-mouse LD50: 150 mg/kg |
| stimulation data | eyes-rabbit 500 mg/24 hours mild |
| flammability hazard characteristics | combustible; combustion produces toxic nitrogen oxide smoke |
| storage and transportation characteristics | ventilation and low temperature drying; separate from warehouse food raw materials |
| fire extinguishing agent | dry powder, foam, sand, carbon dioxide, mist water |
Last Update：2024-04-09 20:52:54
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Product Name: ^a-Benzoin oxiMe Visit Supplier Webpage Request for quotationCAS: 441-38-3
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
Spot supply
Product Name: α-Benzoin oxime Visit Supplier Webpage Request for quotationCAS: 441-38-3
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Spot supply
Product Name: α-Benzoin oxime Visit Supplier Webpage Request for quotationCAS: 441-38-3
Tel: +86-18821248368
Email: Int06@meryer.com
Mobile: +86-18821248368
QQ: 495145328
WhatsApp: +86-18821248368
Multiple Specifications
Product Name: α-Benzoin oxime Visit Supplier Webpage Request for quotationCAS: 441-38-3
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
View History
2-Hydroxy-1,2-diphenylethanone oxime (alpha-form)
1,6-二溴芘
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DL-3-氨基-2-甲基丙酸
4-苯基-4-哌啶甲酸乙酯
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4-(5-溴-2-氯苄基)苯酚
1,6-二溴芘
3-氨基邻苯二甲酸盐酸盐
DL-3-氨基-2-甲基丙酸
4-苯基-4-哌啶甲酸乙酯
4-(1-羟基-1-甲基乙基)-2-丙基-1-[2'-(四唑-5-基)苯基]苯基]甲基咪唑-5-羧酸
4-(5-溴-2-氯苄基)苯酚