(+)-DIACETYL-L-TARTARIC ANHYDRIDE

- CAS No.
- 6283-74-5
- Chemical Name:
- (+)-DIACETYL-L-TARTARIC ANHYDRIDE
- Synonyms
- DATA;NSC 7712;DIACETYL-L-TARTARIC ANHYDRIDE;DI-O-ACETYL-L-TARTARIC ANHYDRIDE;(+)-Diacetyl-L-tartaric Anhydride;(+)-DI-O-ACETYL-L-WEINSURE-ANHYDRID;(+)-Diacetyl-L-tartaricAnhydride>(+)-DI-O-ACETYL-L-TARTARIC ANHYDRIDE;O,O-diacetyl tartaric acid anhydride;(R,R)-DIACETYLTARTARIC ACID ANHYDRIDE
- CBNumber:
- CB0717661
- Molecular Formula:
- C8H8O7
- Molecular Weight:
- 216.14
- MOL File:
- 6283-74-5.mol
- MSDS File:
- SDS
- Modify Date:
- 2025/1/27 9:38:02
Melting point | 130-135 °C(lit.) |
---|---|
Boiling point | 316.55°C (rough estimate) |
Density | 1.5197 (rough estimate) |
refractive index | 90 ° (C=0.5, CHCl3) |
storage temp. | 2-8°C |
solubility | Acetone, Chloroform (Slightly, Heated) |
form | Crystals or Needles |
color | White |
optical activity | [α]20/D +59°, c = 6 in acetone |
Water Solubility | Soluble in methanol and dichloromethane. Slightly soluble in water. |
Sensitive | Moisture Sensitive |
BRN | 87315 |
CAS DataBase Reference | 6283-74-5(CAS DataBase Reference) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() GHS07 |
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Signal word | Warning | |||||||||
Hazard statements | H315-H319-H335 | |||||||||
Precautionary statements | P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
Hazard Codes | Xi | |||||||||
Risk Statements | 36/37/38 | |||||||||
Safety Statements | 26-36 | |||||||||
WGK Germany | 3 | |||||||||
F | 3-10-21 | |||||||||
HS Code | 29321900 | |||||||||
NFPA 704 |
|
(+)-DIACETYL-L-TARTARIC ANHYDRIDE price More Price(2)
(+)-DIACETYL-L-TARTARIC ANHYDRIDE Chemical Properties,Uses,Production
Chemical Properties
White Crystalline Solid
Uses
Di-O-acetyl-L-tartaric Anhydride (cas# 6283-74-5) is a compound useful in organic synthesis.
General Description
(+)-O,O′-Diacetyl-L-tartaric anhydride is an HPLC derivatization reagent for UV/Vis detection. It is mainly employed as a reagent for the chiral derivatization of amino alcohols. It also reacts with alkanoamines in aprotic medium containing trichloroacetic acid and produces tartaric acid monoesters.
Purification Methods
If the IR is good, i.e. no OH bands, then keep it in a vacuum desiccator overnight (over P2O5/paraffin) before use. If OH bands are present then reflux 4g in Ac2O (12.6mL) containing a few drops of conc H2SO4 for 10minutes (use a relatively large flask), pour onto ice, collect the crystals, wash with dry *C6H6 (2 x 2mL), stir with 17mL of cold Et2O, filter and dry in it a vacuum desiccator as above, or store it in dark evacuated ampoules under N2 in small aliquots. It is not very stable in air, the melting point of the crystals drop one degree in the first four days then remains constant (132-134o). If placed in a stoppered bottle, it becomes gummy and the m falls 100o in three days. Recrystllisation leads to decomposition. If good quality anhydride is required it, should be prepared freshly from tartaric acid. It sublimes in a CO2 atmosphere. [Shriner & Furrow Org Synth Coll Vol IV 242 1963, Bell Aust J Chem 34 671 1981, Beilstein 18 III/IV 2296.]
(+)-DIACETYL-L-TARTARIC ANHYDRIDE Preparation Products And Raw materials
(+)-DIACETYL-L-TARTARIC ANHYDRIDE Suppliers
Supplier | Tel | Country | ProdList | Advantage | Inquiry |
---|---|---|---|---|---|
CHEMSWORTH | +91-261-2397244 | New Delhi, India | 6700 | 30 | Inquiry |
TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6768 | 58 | Inquiry |
Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6905 | 58 | Inquiry |
A.J Chemicals | 91-9810153283 | New Delhi, India | 6100 | 58 | Inquiry |
CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6257 | 58 | Inquiry |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 | China | 49732 | 58 | Inquiry |
Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 | China | 12185 | 58 | Inquiry |
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Shanghai UCHEM Inc. | +862156762820 +86-13564624040 | China | 7905 | 58 | Inquiry |
ANHUI WITOP BIOTECH CO., LTD | +8615255079626 | China | 23541 | 58 | Inquiry |
Supplier | Advantage |
---|---|
CHEMSWORTH | 30 |
TCI Chemicals (India) Pvt. Ltd. | 58 |
Alfa Aesar | 58 |
A.J Chemicals | 58 |
CLEARSYNTH LABS LTD. | 58 |
CONIER CHEM AND PHARMA LIMITED | 58 |
Zhengzhou Alfa Chemical Co.,Ltd | 58 |
Hefei TNJ Chemical Industry Co.,Ltd. | 58 |
Shanghai UCHEM Inc. | 58 |
ANHUI WITOP BIOTECH CO., LTD | 58 |
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