CAS No.39968-33-7,HOAt Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	39968-33-7
Name:	HOAt
Article Data:	14
Cas Database

Formula:	C₅H₄N₄O
Molecular Weight:	136.113
Synonyms:	1-Hydroxy-7-azabenzotriazole (HOAT);3H-1,2,3-Triazolo[4,5-b]pyridine,3-hydroxy-;1-Hydroxy-1H-v-triazolo[4,5-b]pyridine;3H-1,2,3-Triazolo[4,5-b]pyridine-3-ol;7-Aza-1-hydroxybenzotriazole;HOAt;[1,2,3]Triazolo[4,5-b]pyridin-3-ol;
EINECS:	609-760-3
Density:	1.74 g/cm³
Melting Point:	213-216 °C
Boiling Point:	376.8 °C at 760 mmHg
Flash Point:	181.7 °C
Appearance:	Clear, colorless liquid
Hazard Symbols:	T, Xi, F, Xn, E
Risk Codes:	61-20/21-36-5-36/37/38-11-41-37/38-22-2
Safety:	53-45-37/39-26-16-39-35-36
Transport Information:	UN 1993 3/PG 3
PSA:	63.83000
LogP:	0.06360

Raw Materials

930-69-8

Total:176 Page 1 of 5 1 2 3 4 5 Next>>

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Chemistry

IUPAC Name: 3-Hydroxytriazolo[4,5-b]pyridine
Molecular formula: C₅H₄N₄O
Molecular Weight: 136.11 g/mol
storage temp.: Store at RT.
Melting point: 213-216 °C
Flash Point: 181.7 °C
Density: 1.74 g/cm³
Index of Refraction: 1.836
Molar Refractivity: 34.45 cm³
Molar Volume: 78 cm³
Decomposition: 213-216 °C
Surface Tension: 84.8 dyne/cm
Enthalpy of Vaporization: 64.9 kJ/mol
Boiling Point: 376.8 °C at 760 mmHg
Vapour Pressure: 3.25E-06 mmHg at 25 °C
Appearance: Clear, colorless liquid
Product Categories of 1-Hydroxy-7-azabenzotriazole (CAS NO.39968-33-7): Peptide coupling agents; Heterocycles; PROTECTED AMINO ACID & PEPTIDES; Peptide Coupling Reagents; Heterocyclic Compounds; Peptide;Bases & Related Reagents; Nucleotides

Uses

1-Hydroxy-7-azabenzotriazole (CAS NO.39968-33-7) is a triazole used as a peptide coupling reagent. It suppresses the loss of chirality.

Safety Profile

Hazard Codes of 1-Hydroxy-7-azabenzotriazole (CAS NO.39968-33-7): Toxic T, Irritant Xi, Harmful Xn, Explosive E ,F
Risk Statements:
R2: Risk of explosion by shock, friction, fire or other sources of ignition
R5: Heating may cause an explosion
R11: Highly Flammable
R22: Harmful if swallowed
R36: Irritating to the eyes
R41: Risk of serious damage to eyes
R61: May cause harm to the unborn child
R20/21: Harmful by inhalation and in contact with skin
R37/38: Irritating to respiratory system and skin
R36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements:
S16: Keep away from sources of ignition - No smoking
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S35: This material and its container must be disposed of in a safe way
S36: Wear suitable protective clothing
S39: Wear eye/face protection
S45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
S53: Avoid exposure - obtain special instruction before use
RIDADR: UN 1993 3/PG 3
WGK Germany: 1
Hazard Note: Irritant

Specification

1-Hydroxy-7-azabenzotriazole , its cas register number is 39968-33-7. It also can be called Hoat [1-hydroxy-7-azabenzotriazole] ; 1-Hydroxy-7-azabenzotriazole99%puriss ; 3h-1,2,3-Triazolo[4,5-b]pyridine, 3-hydroxy- ; 3h-[1,2,3]-Triazolo[4,5-b]pyridin-3-ol ; 7-aza-1-Hydroxybenzotriazole ; Hoat ; and 1-hydroxy-7-azabenzotriazole solution, 0.5m in dmf .

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