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| CAS No.: | 69-79-4 |
|---|---|
| Name: | Maltose |
| Molecular Structure: | |
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| Formula: | C12H22O11 |
| Molecular Weight: | 342.3 |
| Synonyms: | Maltose(8CI);4-O-a-D-Glucopyranosyl-D-glucose;Advantose 100;D-(+)-Maltose;D-Maltose;Finetose;Finetose F;Flolys D 5780;MP 21;Malt sugar;Maltose HH;Maltose HHH;Maltose OM;Sunmalt;Sunmalt S;Maltose; |
| EINECS: | 200-716-5 |
| Density: | 1.76 g/cm3 |
| Melting Point: | 110 °C |
| Boiling Point: | 667.9 °C at 760 mmHg |
| Flash Point: | 357.8 °C |
| Solubility: | 310.3g/L(20 oC) |
| Appearance: | colourless crystals or white powder |
| PSA: | 189.53000 |
| LogP: | -5.39720 |
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| Conditions | Yield |
|---|---|
| With Pullulanase-amylase complex enzyme; Tris buffer; calcium chloride In water at 50℃; for 24h; | A 50.0 % Chromat. B 5.1 % Chromat. C 43.2 % Chromat. |
| With Pullulanase-amylase complex enzyme; tris buffer (pH 7.0) CaCl2 In water at 50℃; for 24h; | A 53.9 % Chromat. B 4.6 % Chromat. C 36.2 % Chromat. |
| With Pullulanase-amylase complex enzyme; Tris buffer; calcium chloride In water at 50℃; for 24h; | A 50.0 % Chromat. B 5.1 % Chromat. C 43.2 % Chromat. |
| Conditions | Yield |
|---|---|
| With Aspergillus niger amyloglucosidase at 40℃; for 3h; pH=6.5; aq. buffer; Enzymatic reaction; |
| Conditions | Yield |
|---|---|
| With Penicillium sp. dextranase at 40℃; for 0.5h; pH=6.5; aq. buffer; Enzymatic reaction; |
- 69-79-4
D-maltose
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: Aspergillus niger amyloglucosidase / 3 h / 40 °C / pH 6.5 / aq. buffer; Enzymatic reaction 2: Aspergillus niger amyloglucosidase / 3 h / 40 °C / pH 6.5 / aq. buffer; Enzymatic reaction View Scheme |
| Conditions | Yield |
|---|---|
| With Leuconostoc mesenteroides B-1299CB4 dextransucrase DSRBCB4, triple mutant S642N/E643N/V644S; calcium chloride at 28℃; pH=5.2; aq. acetate buffer; Enzymatic reaction; |
| Conditions | Yield |
|---|---|
| With Leuconostoc mesenteroides B-1299CB4 dextransucrase DSRBCB4 mutant V532P/V535I/S642N/E643N/V644S; calcium chloride at 28℃; pH=5.2; aq. acetate buffer; Enzymatic reaction; |
- 7585-39-9
β‐cyclodextrin
B
- 50-99-7
D-glucose
C
- 34612-38-9
Maltotetraose
D
- 34620-76-3
malto-pentaose
E
- 34620-77-4
malto-hexaose
F
- 69-79-4
D-maltose
| Conditions | Yield |
|---|---|
| Stage #1: β‐cyclodextrin With Thermoanaerobacter sp. cyclodextrin glucosyl transferase In aq. phosphate buffer at 50℃; for 24h; pH=6; Enzymatic reaction; Stage #2: Enzymatic reaction; |
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A
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D-Fructose
B
- 3458-28-4
D-Mannose
C
- 50-70-4
D-sorbitol
D
- 527-07-1
sodium D-gluconate
F
- 69-79-4
D-maltose
| Conditions | Yield |
|---|---|
| With dihydrogen peroxide; sodium hydroxide In water at 50 - 60℃; Sealed tube; |
| Conditions | Yield |
|---|---|
| With wild-type recombinant sucrose phosphorylase from Bifidobacterium adolescentis In aq. buffer Enzymatic reaction; |
| Conditions | Yield |
|---|---|
| With sodium acetate at 80℃; for 4h; Inert atmosphere; | 98% |
| With sodium acetate Microwave irradiation; |
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Consensus Reports
Reported in EPA TSCA Inventory.
Specification
The Maltose, with the CAS registry number 69-79-4, is also known as Sunmalt. It belongs to the product categories of Disaccharide Molecular Biology; Biochemicals and Reagents; BioUltra Biochemicals and Reagents; BioUltraMolecular Biology; Carbohydrates; DNA & RNA Purification; Molecular Biology Reagents; Reagents. Its EINECS number is 200-716-5. This chemical's molecular formula is C12H22O11 and molecular weight is 342.30. What's more, its systematic name is 4-O-α-D-Glucopyranosyl-β-D-glucopyranose. Its classification codes are: (1)Drug / Therapeutic Agent; (2)Flavoring Agents; (3)Food Additives; (4)Human Data; (5)Natural Product; (6)Reproductive Effect; (7)Sweetening Agents; (8)Tumor data. This chemical is the second member of an important biochemical series of glucose chains. Maltose is the disaccharide produced when amylase breaks down starch. It is found in germinating seeds such as barley as they break down their starch stores to use for food. It is also produced when glucose is caramelized. This substance has the ability to reduce the Fehling’s solution, due to its free aldehyde.
Physical properties of Maltose are: (1)ACD/LogP: 2.838; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.78; (4)ACD/LogD (pH 7.4): 1.65; (5)ACD/BCF (pH 5.5): 74.05; (6)ACD/BCF (pH 7.4): 5.45; (7)ACD/KOC (pH 5.5): 730.25; (8)ACD/KOC (pH 7.4): 53.76; (9)#H bond acceptors: 6; (10)#H bond donors: 3; (11)#Freely Rotating Bonds: 5; (12)Polar Surface Area: 96.22 Å2; (13)Index of Refraction: 1.697; (14)Molar Refractivity: 76.53 cm3; (15)Molar Volume: 198.565 cm3; (16)Polarizability: 30.339×10-24cm3; (17)Surface Tension: 72.8 dyne/cm; (18)Density: 1.512 g/cm3; (19)Flash Point: 230.135 °C; (20)Enthalpy of Vaporization: 92.805 kJ/mol; (21)Boiling Point: 601.506 °C at 760 mmHg; (22)Vapour Pressure: 0 mmHg at 25°C.
When you are using this chemical, please be cautious about it as the following:
This chemical is harmful if swallowed. It is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. When using it,
you need wear suitable protective clothing.
You can still convert the following datas into molecular structure:
(1)SMILES: O=C\1c3c(O)c(OC)c(O)cc3O/C=C/1c2ccc(O)cc2
(2)Std. InChI: InChI=1S/C16H12O6/c1-21-16-11(18)6-12-13(15(16)20)14(19)10(7-22-12)8-2-4-9(17)5-3-8/h2-7,17-18,20H,1H3
(3)Std. InChIKey: OBBCRPUNCUPUOS-UHFFFAOYSA-N
The toxicity data is as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 29100mg/kg (29100mg/kg) | Drugs in Japan Vol. -, Pg. 1139, 1990. | |
| mouse | LD50 | intravenous | 26800mg/kg (26800mg/kg) | LUNGS, THORAX, OR RESPIRATION: DYSPNEA BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE | Yakuri to Chiryo. Pharmacology and Therapeutics. Vol. 7, Pg. 53, 1979. |
| mouse | LD50 | oral | > 44gm/kg (44000mg/kg) | Drugs in Japan Vol. -, Pg. 1139, 1990. | |
| mouse | LD50 | subcutaneous | 38600mg/kg (38600mg/kg) | BEHAVIORAL: TREMOR BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD | Yakuri to Chiryo. Pharmacology and Therapeutics. Vol. 7, Pg. 53, 1979. |
| rabbit | LD50 | intravenous | 25200mg/kg (25200mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION | Oyo Yakuri. Pharmacometrics. Vol. 6, Pg. 541, 1972. |
| rat | LD | subcutaneous | > 26700mg/kg (26700mg/kg) | BEHAVIORAL: EXCITEMENT | Oyo Yakuri. Pharmacometrics. Vol. 6, Pg. 251, 1972. |
| rat | LD50 | intraperitoneal | 30600mg/kg (30600mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX) LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Oyo Yakuri. Pharmacometrics. Vol. 6, Pg. 251, 1972. |
| rat | LD50 | intravenous | 15300mg/kg (15300mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX) LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Oyo Yakuri. Pharmacometrics. Vol. 6, Pg. 251, 1972. |
| rat | LD50 | oral | 34800mg/kg (34800mg/kg) | GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA" LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION | Yakuri to Chiryo. Pharmacology and Therapeutics. Vol. 7, Pg. 53, 1979. |
| women | TDLo | oral | 100mg/kg/2D-I (100mg/kg) | Annals of Internal Medicine. Vol. 118, Pg. 526, 1993. | |
| women | TDLo | oral | 100mg/kg/2D-I (100mg/kg) | BLOOD: "CHANGES IN SERUM COMPOSITION (E.G., TP, BILIRUBIN, CHOLESTEROL)" | Annals of Internal Medicine. Vol. 118, Pg. 526, 1993. |