Hemoglobin Bristol is a variant of the hemoglobin molecule, which is responsible for transporting oxygen in the blood. This particular variant is characterized by a substitution of the amino acid glutamic acid with valine at the beta chain's 121st position. This mutation can lead to a mild form of hemoglobinopathy, a group of genetic blood disorders affecting the structure and function of hemoglobin. Hemoglobin Bristol is generally associated with reduced oxygen affinity, which may result in mild symptoms such as fatigue and shortness of breath, particularly under conditions of physical exertion. It is important to note that the severity of symptoms can vary significantly among individuals with this hemoglobin variant, and some may not experience any noticeable effects.
The CAS Registry Mumber 9034-56-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,3 and 4 respectively; the second part has 2 digits, 5 and 6 respectively. Calculate Digit Verification of CAS Registry Number 9034-56: (6*9)+(5*0)+(4*3)+(3*4)+(2*5)+(1*6)=94 94 % 10 = 4 So 9034-56-4 is a valid CAS Registry Number.