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711489

Sigma-Aldrich

1-Hydroxybenzotriazole hydrate

wetted with not less than 20 wt. % water, 97%

Synonym(s):
HOBt Hydrate
Empirical Formula (Hill Notation):
C6H5N3O · xH2O
CAS Number:
Molecular Weight:
135.12 (anhydrous basis)
Beilstein:
4515
EC Number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

97%
97.0-103.0% (T)

form

powder

quality

wetted with not less than 20 wt. % water

reaction suitability

reaction type: Addition Reactions

impurities

≥20% water

mp

155-158 °C (lit.)

solubility

DMF: 0.1 g/mL, clear

SMILES string

[H]O[H].On1nnc2ccccc12

InChI

1S/C6H5N3O.H2O/c10-9-6-4-2-1-3-5(6)7-8-9;/h1-4,10H;1H2

InChI key

PJUPKRYGDFTMTM-UHFFFAOYSA-N

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Packaging

50, 250 g in poly bottle

Application

Additive used in oligonucleotide couplings and in racemization-free peptide couplings.

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Aquatic Chronic 3 - Desen. Expl. 2 - Eye Irrit. 2

Supplementary Hazards

Storage Class Code

4.1A - Other explosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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