30672-30-1 Usage
General Description
2,3-dimethyl-1-(4-nitrophenyl)-3-pyrazolin-5-one, also known as DNPH, is a yellow crystalline compound that is commonly used in analytical chemistry as a reagent for the detection and measurement of aldehydes and ketones. It undergoes a reaction with carbonyl compounds to form a colored derivative, which can then be analyzed using spectrophotometric or chromatographic methods. DNPH is known for its high specificity and sensitivity towards carbonyl compounds, making it a valuable tool in environmental monitoring, industrial hygiene, and chemical analysis. However, it is important to handle DNPH with care, as it is considered a hazardous chemical with potential health and environmental risks.
Check Digit Verification of cas no
The CAS Registry Mumber 30672-30-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,6,7 and 2 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 30672-30:
(7*3)+(6*0)+(5*6)+(4*7)+(3*2)+(2*3)+(1*0)=91
91 % 10 = 1
So 30672-30-1 is a valid CAS Registry Number.
InChI:InChI=1/C11H11N3O3/c1-8-7-11(15)13(12(8)2)9-3-5-10(6-4-9)14(16)17/h3-7H,1-2H3
30672-30-1Relevant articles and documents
Room-temperature direct alkenylation of 5-pyrazolones
Yang, Yiwen,Gong, Hao,Kuang, Chunxiang
supporting information, p. 5276 - 5281 (2013/09/02)
A mild and efficient method for the direct alkenylation of 5-pyrazoles by Pd-catalyzed C-H bond activation is described. The reaction smoothly proceeds at room temperature to provide products in up to 92 % yield. Heterocycles containing the 5-pyrazolone moiety are synthesized by an oxidative Heck-type reaction. The direct alkenylation of 5-pyrazolones at room temperature through Pd-catalyzed C-H bond activation is described. Copyright
